Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 8737 insertions, 0 deletions

diff --git a/drivers/net/ethernet/atheros/atlx/Makefile b/drivers/net/ethernet/atheros/atlx/Makefile
new file mode 100644
index 0000000000..df030e421f
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_ATL1)	+= atl1.o
+obj-$(CONFIG_ATL2)	+= atl2.o
+
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
new file mode 100644
index 0000000000..02aa6fd8eb
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -0,0 +1,3651 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ *
+ * Contact Information:
+ * Xiong Huang <xiong.huang@atheros.com>
+ * Jie Yang <jie.yang@atheros.com>
+ * Chris Snook <csnook@redhat.com>
+ * Jay Cliburn <jcliburn@gmail.com>
+ *
+ * This version is adapted from the Attansic reference driver.
+ *
+ * TODO:
+ * Add more ethtool functions.
+ * Fix abstruse irq enable/disable condition described here:
+ *	http://marc.theaimsgroup.com/?l=linux-netdev&m=116398508500553&w=2
+ *
+ * NEEDS TESTING:
+ * VLAN
+ * multicast
+ * promiscuous mode
+ * interrupt coalescing
+ * SMP torture testing
+ */
+
+#include <linux/atomic.h>
+#include <asm/byteorder.h>
+
+#include <linux/compiler.h>
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/hardirq.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/interrupt.h>
+#include <linux/ip.h>
+#include <linux/irqflags.h>
+#include <linux/irqreturn.h>
+#include <linux/jiffies.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/pm.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/tcp.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include <net/checksum.h>
+
+#include "atl1.h"
+
+MODULE_AUTHOR("Xiong Huang <xiong.huang@atheros.com>, "
+	      "Chris Snook <csnook@redhat.com>, "
+	      "Jay Cliburn <jcliburn@gmail.com>");
+MODULE_LICENSE("GPL");
+
+/* Temporary hack for merging atl1 and atl2 */
+#include "atlx.c"
+
+static const struct ethtool_ops atl1_ethtool_ops;
+
+/*
+ * This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+#define ATL1_MAX_NIC 4
+
+#define OPTION_UNSET    -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+#define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
+
+/*
+ * Interrupt Moderate Timer in units of 2 us
+ *
+ * Valid Range: 10-65535
+ *
+ * Default Value: 100 (200us)
+ */
+static int int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
+static unsigned int num_int_mod_timer;
+module_param_array_named(int_mod_timer, int_mod_timer, int,
+	&num_int_mod_timer, 0);
+MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
+
+#define DEFAULT_INT_MOD_CNT	100	/* 200us */
+#define MAX_INT_MOD_CNT		65000
+#define MIN_INT_MOD_CNT		50
+
+struct atl1_option {
+	enum { enable_option, range_option, list_option } type;
+	char *name;
+	char *err;
+	int def;
+	union {
+		struct {	/* range_option info */
+			int min;
+			int max;
+		} r;
+		struct {	/* list_option info */
+			int nr;
+			struct atl1_opt_list {
+				int i;
+				char *str;
+			} *p;
+		} l;
+	} arg;
+};
+
+static int atl1_validate_option(int *value, struct atl1_option *opt,
+				struct pci_dev *pdev)
+{
+	if (*value == OPTION_UNSET) {
+		*value = opt->def;
+		return 0;
+	}
+
+	switch (opt->type) {
+	case enable_option:
+		switch (*value) {
+		case OPTION_ENABLED:
+			dev_info(&pdev->dev, "%s enabled\n", opt->name);
+			return 0;
+		case OPTION_DISABLED:
+			dev_info(&pdev->dev, "%s disabled\n", opt->name);
+			return 0;
+		}
+		break;
+	case range_option:
+		if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+			dev_info(&pdev->dev, "%s set to %i\n", opt->name,
+				*value);
+			return 0;
+		}
+		break;
+	case list_option:{
+			int i;
+			struct atl1_opt_list *ent;
+
+			for (i = 0; i < opt->arg.l.nr; i++) {
+				ent = &opt->arg.l.p[i];
+				if (*value == ent->i) {
+					if (ent->str[0] != '\0')
+						dev_info(&pdev->dev, "%s\n",
+							ent->str);
+					return 0;
+				}
+			}
+		}
+		break;
+
+	default:
+		break;
+	}
+
+	dev_info(&pdev->dev, "invalid %s specified (%i) %s\n",
+		opt->name, *value, opt->err);
+	*value = opt->def;
+	return -1;
+}
+
+/**
+ * atl1_check_options - Range Checking for Command Line Parameters
+ * @adapter: board private structure
+ *
+ * This routine checks all command line parameters for valid user
+ * input.  If an invalid value is given, or if no user specified
+ * value exists, a default value is used.  The final value is stored
+ * in a variable in the adapter structure.
+ */
+static void atl1_check_options(struct atl1_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int bd = adapter->bd_number;
+	if (bd >= ATL1_MAX_NIC) {
+		dev_notice(&pdev->dev, "no configuration for board#%i\n", bd);
+		dev_notice(&pdev->dev, "using defaults for all values\n");
+	}
+	{			/* Interrupt Moderate Timer */
+		struct atl1_option opt = {
+			.type = range_option,
+			.name = "Interrupt Moderator Timer",
+			.err = "using default of "
+				__MODULE_STRING(DEFAULT_INT_MOD_CNT),
+			.def = DEFAULT_INT_MOD_CNT,
+			.arg = {.r = {.min = MIN_INT_MOD_CNT,
+					.max = MAX_INT_MOD_CNT} }
+		};
+		int val;
+		if (num_int_mod_timer > bd) {
+			val = int_mod_timer[bd];
+			atl1_validate_option(&val, &opt, pdev);
+			adapter->imt = (u16) val;
+		} else
+			adapter->imt = (u16) (opt.def);
+	}
+}
+
+/*
+ * atl1_pci_tbl - PCI Device ID Table
+ */
+static const struct pci_device_id atl1_pci_tbl[] = {
+	{PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1)},
+	/* required last entry */
+	{0,}
+};
+MODULE_DEVICE_TABLE(pci, atl1_pci_tbl);
+
+static const u32 atl1_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
+	NETIF_MSG_LINK | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP;
+
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Message level (0=none,...,16=all)");
+
+/*
+ * Reset the transmit and receive units; mask and clear all interrupts.
+ * hw - Struct containing variables accessed by shared code
+ * return : 0  or  idle status (if error)
+ */
+static s32 atl1_reset_hw(struct atl1_hw *hw)
+{
+	struct pci_dev *pdev = hw->back->pdev;
+	struct atl1_adapter *adapter = hw->back;
+	u32 icr;
+	int i;
+
+	/*
+	 * Clear Interrupt mask to stop board from generating
+	 * interrupts & Clear any pending interrupt events
+	 */
+	/*
+	 * atlx_irq_disable(adapter);
+	 * iowrite32(0xffffffff, hw->hw_addr + REG_ISR);
+	 */
+
+	/*
+	 * Issue Soft Reset to the MAC.  This will reset the chip's
+	 * transmit, receive, DMA.  It will not effect
+	 * the current PCI configuration.  The global reset bit is self-
+	 * clearing, and should clear within a microsecond.
+	 */
+	iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL);
+	ioread32(hw->hw_addr + REG_MASTER_CTRL);
+
+	iowrite16(1, hw->hw_addr + REG_PHY_ENABLE);
+	ioread16(hw->hw_addr + REG_PHY_ENABLE);
+
+	/* delay about 1ms */
+	msleep(1);
+
+	/* Wait at least 10ms for All module to be Idle */
+	for (i = 0; i < 10; i++) {
+		icr = ioread32(hw->hw_addr + REG_IDLE_STATUS);
+		if (!icr)
+			break;
+		/* delay 1 ms */
+		msleep(1);
+		/* FIXME: still the right way to do this? */
+		cpu_relax();
+	}
+
+	if (icr) {
+		if (netif_msg_hw(adapter))
+			dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr);
+		return icr;
+	}
+
+	return 0;
+}
+
+/* function about EEPROM
+ *
+ * check_eeprom_exist
+ * return 0 if eeprom exist
+ */
+static int atl1_check_eeprom_exist(struct atl1_hw *hw)
+{
+	u32 value;
+	value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+	if (value & SPI_FLASH_CTRL_EN_VPD) {
+		value &= ~SPI_FLASH_CTRL_EN_VPD;
+		iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+	}
+
+	value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST);
+	return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
+}
+
+static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value)
+{
+	int i;
+	u32 control;
+
+	if (offset & 3)
+		/* address do not align */
+		return false;
+
+	iowrite32(0, hw->hw_addr + REG_VPD_DATA);
+	control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
+	iowrite32(control, hw->hw_addr + REG_VPD_CAP);
+	ioread32(hw->hw_addr + REG_VPD_CAP);
+
+	for (i = 0; i < 10; i++) {
+		msleep(2);
+		control = ioread32(hw->hw_addr + REG_VPD_CAP);
+		if (control & VPD_CAP_VPD_FLAG)
+			break;
+	}
+	if (control & VPD_CAP_VPD_FLAG) {
+		*p_value = ioread32(hw->hw_addr + REG_VPD_DATA);
+		return true;
+	}
+	/* timeout */
+	return false;
+}
+
+/*
+ * Reads the value from a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to read
+ */
+static s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data)
+{
+	u32 val;
+	int i;
+
+	val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
+		MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 <<
+		MDIO_CLK_SEL_SHIFT;
+	iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
+	ioread32(hw->hw_addr + REG_MDIO_CTRL);
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+	}
+	if (!(val & (MDIO_START | MDIO_BUSY))) {
+		*phy_data = (u16) val;
+		return 0;
+	}
+	return ATLX_ERR_PHY;
+}
+
+#define CUSTOM_SPI_CS_SETUP	2
+#define CUSTOM_SPI_CLK_HI	2
+#define CUSTOM_SPI_CLK_LO	2
+#define CUSTOM_SPI_CS_HOLD	2
+#define CUSTOM_SPI_CS_HI	3
+
+static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf)
+{
+	int i;
+	u32 value;
+
+	iowrite32(0, hw->hw_addr + REG_SPI_DATA);
+	iowrite32(addr, hw->hw_addr + REG_SPI_ADDR);
+
+	value = SPI_FLASH_CTRL_WAIT_READY |
+	    (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
+	    SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI &
+					     SPI_FLASH_CTRL_CLK_HI_MASK) <<
+	    SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO &
+					   SPI_FLASH_CTRL_CLK_LO_MASK) <<
+	    SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD &
+					   SPI_FLASH_CTRL_CS_HOLD_MASK) <<
+	    SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI &
+					    SPI_FLASH_CTRL_CS_HI_MASK) <<
+	    SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) <<
+	    SPI_FLASH_CTRL_INS_SHIFT;
+
+	iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+
+	value |= SPI_FLASH_CTRL_START;
+	iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+	ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+
+	for (i = 0; i < 10; i++) {
+		msleep(1);
+		value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+		if (!(value & SPI_FLASH_CTRL_START))
+			break;
+	}
+
+	if (value & SPI_FLASH_CTRL_START)
+		return false;
+
+	*buf = ioread32(hw->hw_addr + REG_SPI_DATA);
+
+	return true;
+}
+
+/*
+ * get_permanent_address
+ * return 0 if get valid mac address,
+ */
+static int atl1_get_permanent_address(struct atl1_hw *hw)
+{
+	u32 addr[2];
+	u32 i, control;
+	u16 reg;
+	u8 eth_addr[ETH_ALEN];
+	bool key_valid;
+
+	if (is_valid_ether_addr(hw->perm_mac_addr))
+		return 0;
+
+	/* init */
+	addr[0] = addr[1] = 0;
+
+	if (!atl1_check_eeprom_exist(hw)) {
+		reg = 0;
+		key_valid = false;
+		/* Read out all EEPROM content */
+		i = 0;
+		while (1) {
+			if (atl1_read_eeprom(hw, i + 0x100, &control)) {
+				if (key_valid) {
+					if (reg == REG_MAC_STA_ADDR)
+						addr[0] = control;
+					else if (reg == (REG_MAC_STA_ADDR + 4))
+						addr[1] = control;
+					key_valid = false;
+				} else if ((control & 0xff) == 0x5A) {
+					key_valid = true;
+					reg = (u16) (control >> 16);
+				} else
+					break;
+			} else
+				/* read error */
+				break;
+			i += 4;
+		}
+
+		*(u32 *) &eth_addr[2] = swab32(addr[0]);
+		*(u16 *) &eth_addr[0] = swab16(*(u16 *) &addr[1]);
+		if (is_valid_ether_addr(eth_addr)) {
+			memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
+			return 0;
+		}
+	}
+
+	/* see if SPI FLAGS exist ? */
+	addr[0] = addr[1] = 0;
+	reg = 0;
+	key_valid = false;
+	i = 0;
+	while (1) {
+		if (atl1_spi_read(hw, i + 0x1f000, &control)) {
+			if (key_valid) {
+				if (reg == REG_MAC_STA_ADDR)
+					addr[0] = control;
+				else if (reg == (REG_MAC_STA_ADDR + 4))
+					addr[1] = control;
+				key_valid = false;
+			} else if ((control & 0xff) == 0x5A) {
+				key_valid = true;
+				reg = (u16) (control >> 16);
+			} else
+				/* data end */
+				break;
+		} else
+			/* read error */
+			break;
+		i += 4;
+	}
+
+	*(u32 *) &eth_addr[2] = swab32(addr[0]);
+	*(u16 *) &eth_addr[0] = swab16(*(u16 *) &addr[1]);
+	if (is_valid_ether_addr(eth_addr)) {
+		memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
+		return 0;
+	}
+
+	/*
+	 * On some motherboards, the MAC address is written by the
+	 * BIOS directly to the MAC register during POST, and is
+	 * not stored in eeprom.  If all else thus far has failed
+	 * to fetch the permanent MAC address, try reading it directly.
+	 */
+	addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR);
+	addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4));
+	*(u32 *) &eth_addr[2] = swab32(addr[0]);
+	*(u16 *) &eth_addr[0] = swab16(*(u16 *) &addr[1]);
+	if (is_valid_ether_addr(eth_addr)) {
+		memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
+		return 0;
+	}
+
+	return 1;
+}
+
+/*
+ * Reads the adapter's MAC address from the EEPROM
+ * hw - Struct containing variables accessed by shared code
+ */
+static s32 atl1_read_mac_addr(struct atl1_hw *hw)
+{
+	s32 ret = 0;
+	u16 i;
+
+	if (atl1_get_permanent_address(hw)) {
+		eth_random_addr(hw->perm_mac_addr);
+		ret = 1;
+	}
+
+	for (i = 0; i < ETH_ALEN; i++)
+		hw->mac_addr[i] = hw->perm_mac_addr[i];
+	return ret;
+}
+
+/*
+ * Hashes an address to determine its location in the multicast table
+ * hw - Struct containing variables accessed by shared code
+ * mc_addr - the multicast address to hash
+ *
+ * atl1_hash_mc_addr
+ *  purpose
+ *      set hash value for a multicast address
+ *      hash calcu processing :
+ *          1. calcu 32bit CRC for multicast address
+ *          2. reverse crc with MSB to LSB
+ */
+static u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr)
+{
+	u32 crc32, value = 0;
+	int i;
+
+	crc32 = ether_crc_le(6, mc_addr);
+	for (i = 0; i < 32; i++)
+		value |= (((crc32 >> i) & 1) << (31 - i));
+
+	return value;
+}
+
+/*
+ * Sets the bit in the multicast table corresponding to the hash value.
+ * hw - Struct containing variables accessed by shared code
+ * hash_value - Multicast address hash value
+ */
+static void atl1_hash_set(struct atl1_hw *hw, u32 hash_value)
+{
+	u32 hash_bit, hash_reg;
+	u32 mta;
+
+	/*
+	 * The HASH Table  is a register array of 2 32-bit registers.
+	 * It is treated like an array of 64 bits.  We want to set
+	 * bit BitArray[hash_value]. So we figure out what register
+	 * the bit is in, read it, OR in the new bit, then write
+	 * back the new value.  The register is determined by the
+	 * upper 7 bits of the hash value and the bit within that
+	 * register are determined by the lower 5 bits of the value.
+	 */
+	hash_reg = (hash_value >> 31) & 0x1;
+	hash_bit = (hash_value >> 26) & 0x1F;
+	mta = ioread32((hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
+	mta |= (1 << hash_bit);
+	iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
+}
+
+/*
+ * Writes a value to a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to write
+ * data - data to write to the PHY
+ */
+static s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data)
+{
+	int i;
+	u32 val;
+
+	val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
+	    (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
+	    MDIO_SUP_PREAMBLE |
+	    MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
+	iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
+	ioread32(hw->hw_addr + REG_MDIO_CTRL);
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+	}
+
+	if (!(val & (MDIO_START | MDIO_BUSY)))
+		return 0;
+
+	return ATLX_ERR_PHY;
+}
+
+/*
+ * Make L001's PHY out of Power Saving State (bug)
+ * hw - Struct containing variables accessed by shared code
+ * when power on, L001's PHY always on Power saving State
+ * (Gigabit Link forbidden)
+ */
+static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
+{
+	s32 ret;
+	ret = atl1_write_phy_reg(hw, 29, 0x0029);
+	if (ret)
+		return ret;
+	return atl1_write_phy_reg(hw, 30, 0);
+}
+
+/*
+ * Resets the PHY and make all config validate
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
+ */
+static s32 atl1_phy_reset(struct atl1_hw *hw)
+{
+	struct pci_dev *pdev = hw->back->pdev;
+	struct atl1_adapter *adapter = hw->back;
+	s32 ret_val;
+	u16 phy_data;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+	else {
+		switch (hw->media_type) {
+		case MEDIA_TYPE_100M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+			    MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_100M_HALF:
+			phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_10M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		default:
+			/* MEDIA_TYPE_10M_HALF: */
+			phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		}
+	}
+
+	ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+	if (ret_val) {
+		u32 val;
+		int i;
+		/* pcie serdes link may be down! */
+		if (netif_msg_hw(adapter))
+			dev_dbg(&pdev->dev, "pcie phy link down\n");
+
+		for (i = 0; i < 25; i++) {
+			msleep(1);
+			val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+			if (!(val & (MDIO_START | MDIO_BUSY)))
+				break;
+		}
+
+		if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
+			if (netif_msg_hw(adapter))
+				dev_warn(&pdev->dev,
+					"pcie link down at least 25ms\n");
+			return ret_val;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Configures PHY autoneg and flow control advertisement settings
+ * hw - Struct containing variables accessed by shared code
+ */
+static s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
+{
+	s32 ret_val;
+	s16 mii_autoneg_adv_reg;
+	s16 mii_1000t_ctrl_reg;
+
+	/* Read the MII Auto-Neg Advertisement Register (Address 4). */
+	mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
+
+	/* Read the MII 1000Base-T Control Register (Address 9). */
+	mii_1000t_ctrl_reg = MII_ATLX_CR_1000T_DEFAULT_CAP_MASK;
+
+	/*
+	 * First we clear all the 10/100 mb speed bits in the Auto-Neg
+	 * Advertisement Register (Address 4) and the 1000 mb speed bits in
+	 * the  1000Base-T Control Register (Address 9).
+	 */
+	mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
+	mii_1000t_ctrl_reg &= ~MII_ATLX_CR_1000T_SPEED_MASK;
+
+	/*
+	 * Need to parse media_type  and set up
+	 * the appropriate PHY registers.
+	 */
+	switch (hw->media_type) {
+	case MEDIA_TYPE_AUTO_SENSOR:
+		mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
+					MII_AR_10T_FD_CAPS |
+					MII_AR_100TX_HD_CAPS |
+					MII_AR_100TX_FD_CAPS);
+		mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_1000M_FULL:
+		mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_100M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_100M_HALF:
+		mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
+		break;
+
+	case MEDIA_TYPE_10M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
+		break;
+
+	default:
+		mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
+		break;
+	}
+
+	/* flow control fixed to enable all */
+	mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
+
+	hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
+	hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
+
+	ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
+	if (ret_val)
+		return ret_val;
+
+	ret_val = atl1_write_phy_reg(hw, MII_ATLX_CR, mii_1000t_ctrl_reg);
+	if (ret_val)
+		return ret_val;
+
+	return 0;
+}
+
+/*
+ * Configures link settings.
+ * hw - Struct containing variables accessed by shared code
+ * Assumes the hardware has previously been reset and the
+ * transmitter and receiver are not enabled.
+ */
+static s32 atl1_setup_link(struct atl1_hw *hw)
+{
+	struct pci_dev *pdev = hw->back->pdev;
+	struct atl1_adapter *adapter = hw->back;
+	s32 ret_val;
+
+	/*
+	 * Options:
+	 *  PHY will advertise value(s) parsed from
+	 *  autoneg_advertised and fc
+	 *  no matter what autoneg is , We will not wait link result.
+	 */
+	ret_val = atl1_phy_setup_autoneg_adv(hw);
+	if (ret_val) {
+		if (netif_msg_link(adapter))
+			dev_dbg(&pdev->dev,
+				"error setting up autonegotiation\n");
+		return ret_val;
+	}
+	/* SW.Reset , En-Auto-Neg if needed */
+	ret_val = atl1_phy_reset(hw);
+	if (ret_val) {
+		if (netif_msg_link(adapter))
+			dev_dbg(&pdev->dev, "error resetting phy\n");
+		return ret_val;
+	}
+	hw->phy_configured = true;
+	return ret_val;
+}
+
+static void atl1_init_flash_opcode(struct atl1_hw *hw)
+{
+	if (hw->flash_vendor >= ARRAY_SIZE(flash_table))
+		/* Atmel */
+		hw->flash_vendor = 0;
+
+	/* Init OP table */
+	iowrite8(flash_table[hw->flash_vendor].cmd_program,
+		hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM);
+	iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase,
+		hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE);
+	iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase,
+		hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE);
+	iowrite8(flash_table[hw->flash_vendor].cmd_rdid,
+		hw->hw_addr + REG_SPI_FLASH_OP_RDID);
+	iowrite8(flash_table[hw->flash_vendor].cmd_wren,
+		hw->hw_addr + REG_SPI_FLASH_OP_WREN);
+	iowrite8(flash_table[hw->flash_vendor].cmd_rdsr,
+		hw->hw_addr + REG_SPI_FLASH_OP_RDSR);
+	iowrite8(flash_table[hw->flash_vendor].cmd_wrsr,
+		hw->hw_addr + REG_SPI_FLASH_OP_WRSR);
+	iowrite8(flash_table[hw->flash_vendor].cmd_read,
+		hw->hw_addr + REG_SPI_FLASH_OP_READ);
+}
+
+/*
+ * Performs basic configuration of the adapter.
+ * hw - Struct containing variables accessed by shared code
+ * Assumes that the controller has previously been reset and is in a
+ * post-reset uninitialized state. Initializes multicast table,
+ * and  Calls routines to setup link
+ * Leaves the transmit and receive units disabled and uninitialized.
+ */
+static s32 atl1_init_hw(struct atl1_hw *hw)
+{
+	u32 ret_val = 0;
+
+	/* Zero out the Multicast HASH table */
+	iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
+	/* clear the old settings from the multicast hash table */
+	iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+
+	atl1_init_flash_opcode(hw);
+
+	if (!hw->phy_configured) {
+		/* enable GPHY LinkChange Interrupt */
+		ret_val = atl1_write_phy_reg(hw, 18, 0xC00);
+		if (ret_val)
+			return ret_val;
+		/* make PHY out of power-saving state */
+		ret_val = atl1_phy_leave_power_saving(hw);
+		if (ret_val)
+			return ret_val;
+		/* Call a subroutine to configure the link */
+		ret_val = atl1_setup_link(hw);
+	}
+	return ret_val;
+}
+
+/*
+ * Detects the current speed and duplex settings of the hardware.
+ * hw - Struct containing variables accessed by shared code
+ * speed - Speed of the connection
+ * duplex - Duplex setting of the connection
+ */
+static s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
+{
+	struct pci_dev *pdev = hw->back->pdev;
+	struct atl1_adapter *adapter = hw->back;
+	s32 ret_val;
+	u16 phy_data;
+
+	/* ; --- Read   PHY Specific Status Register (17) */
+	ret_val = atl1_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data);
+	if (ret_val)
+		return ret_val;
+
+	if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED))
+		return ATLX_ERR_PHY_RES;
+
+	switch (phy_data & MII_ATLX_PSSR_SPEED) {
+	case MII_ATLX_PSSR_1000MBS:
+		*speed = SPEED_1000;
+		break;
+	case MII_ATLX_PSSR_100MBS:
+		*speed = SPEED_100;
+		break;
+	case MII_ATLX_PSSR_10MBS:
+		*speed = SPEED_10;
+		break;
+	default:
+		if (netif_msg_hw(adapter))
+			dev_dbg(&pdev->dev, "error getting speed\n");
+		return ATLX_ERR_PHY_SPEED;
+	}
+	if (phy_data & MII_ATLX_PSSR_DPLX)
+		*duplex = FULL_DUPLEX;
+	else
+		*duplex = HALF_DUPLEX;
+
+	return 0;
+}
+
+static void atl1_set_mac_addr(struct atl1_hw *hw)
+{
+	u32 value;
+	/*
+	 * 00-0B-6A-F6-00-DC
+	 * 0:  6AF600DC   1: 000B
+	 * low dword
+	 */
+	value = (((u32) hw->mac_addr[2]) << 24) |
+	    (((u32) hw->mac_addr[3]) << 16) |
+	    (((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5]));
+	iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
+	/* high dword */
+	value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
+	iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2));
+}
+
+/**
+ * atl1_sw_init - Initialize general software structures (struct atl1_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * atl1_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ */
+static int atl1_sw_init(struct atl1_adapter *adapter)
+{
+	struct atl1_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+
+	hw->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+	hw->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+
+	adapter->wol = 0;
+	device_set_wakeup_enable(&adapter->pdev->dev, false);
+	adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7;
+	adapter->ict = 50000;		/* 100ms */
+	adapter->link_speed = SPEED_0;	/* hardware init */
+	adapter->link_duplex = FULL_DUPLEX;
+
+	hw->phy_configured = false;
+	hw->preamble_len = 7;
+	hw->ipgt = 0x60;
+	hw->min_ifg = 0x50;
+	hw->ipgr1 = 0x40;
+	hw->ipgr2 = 0x60;
+	hw->max_retry = 0xf;
+	hw->lcol = 0x37;
+	hw->jam_ipg = 7;
+	hw->rfd_burst = 8;
+	hw->rrd_burst = 8;
+	hw->rfd_fetch_gap = 1;
+	hw->rx_jumbo_th = adapter->rx_buffer_len / 8;
+	hw->rx_jumbo_lkah = 1;
+	hw->rrd_ret_timer = 16;
+	hw->tpd_burst = 4;
+	hw->tpd_fetch_th = 16;
+	hw->txf_burst = 0x100;
+	hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3;
+	hw->tpd_fetch_gap = 1;
+	hw->rcb_value = atl1_rcb_64;
+	hw->dma_ord = atl1_dma_ord_enh;
+	hw->dmar_block = atl1_dma_req_256;
+	hw->dmaw_block = atl1_dma_req_256;
+	hw->cmb_rrd = 4;
+	hw->cmb_tpd = 4;
+	hw->cmb_rx_timer = 1;	/* about 2us */
+	hw->cmb_tx_timer = 1;	/* about 2us */
+	hw->smb_timer = 100000;	/* about 200ms */
+
+	spin_lock_init(&adapter->lock);
+	spin_lock_init(&adapter->mb_lock);
+
+	return 0;
+}
+
+static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	u16 result;
+
+	atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
+
+	return result;
+}
+
+static void mdio_write(struct net_device *netdev, int phy_id, int reg_num,
+	int val)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	atl1_write_phy_reg(&adapter->hw, reg_num, val);
+}
+
+static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	unsigned long flags;
+	int retval;
+
+	if (!netif_running(netdev))
+		return -EINVAL;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+
+	return retval;
+}
+
+/**
+ * atl1_setup_ring_resources - allocate Tx / RX descriptor resources
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ */
+static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+	struct atl1_ring_header *ring_header = &adapter->ring_header;
+	struct pci_dev *pdev = adapter->pdev;
+	int size;
+	u8 offset = 0;
+
+	size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count);
+	tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
+	if (unlikely(!tpd_ring->buffer_info)) {
+		if (netif_msg_drv(adapter))
+			dev_err(&pdev->dev, "kzalloc failed , size = D%d\n",
+				size);
+		goto err_nomem;
+	}
+	rfd_ring->buffer_info =
+		(tpd_ring->buffer_info + tpd_ring->count);
+
+	/*
+	 * real ring DMA buffer
+	 * each ring/block may need up to 8 bytes for alignment, hence the
+	 * additional 40 bytes tacked onto the end.
+	 */
+	ring_header->size =
+		sizeof(struct tx_packet_desc) * tpd_ring->count
+		+ sizeof(struct rx_free_desc) * rfd_ring->count
+		+ sizeof(struct rx_return_desc) * rrd_ring->count
+		+ sizeof(struct coals_msg_block)
+		+ sizeof(struct stats_msg_block)
+		+ 40;
+
+	ring_header->desc = dma_alloc_coherent(&pdev->dev, ring_header->size,
+					       &ring_header->dma, GFP_KERNEL);
+	if (unlikely(!ring_header->desc)) {
+		if (netif_msg_drv(adapter))
+			dev_err(&pdev->dev, "dma_alloc_coherent failed\n");
+		goto err_nomem;
+	}
+
+	/* init TPD ring */
+	tpd_ring->dma = ring_header->dma;
+	offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0;
+	tpd_ring->dma += offset;
+	tpd_ring->desc = (u8 *) ring_header->desc + offset;
+	tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count;
+
+	/* init RFD ring */
+	rfd_ring->dma = tpd_ring->dma + tpd_ring->size;
+	offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0;
+	rfd_ring->dma += offset;
+	rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset);
+	rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count;
+
+
+	/* init RRD ring */
+	rrd_ring->dma = rfd_ring->dma + rfd_ring->size;
+	offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0;
+	rrd_ring->dma += offset;
+	rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset);
+	rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count;
+
+
+	/* init CMB */
+	adapter->cmb.dma = rrd_ring->dma + rrd_ring->size;
+	offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0;
+	adapter->cmb.dma += offset;
+	adapter->cmb.cmb = (struct coals_msg_block *)
+		((u8 *) rrd_ring->desc + (rrd_ring->size + offset));
+
+	/* init SMB */
+	adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block);
+	offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0;
+	adapter->smb.dma += offset;
+	adapter->smb.smb = (struct stats_msg_block *)
+		((u8 *) adapter->cmb.cmb +
+		(sizeof(struct coals_msg_block) + offset));
+
+	return 0;
+
+err_nomem:
+	kfree(tpd_ring->buffer_info);
+	return -ENOMEM;
+}
+
+static void atl1_init_ring_ptrs(struct atl1_adapter *adapter)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+
+	atomic_set(&tpd_ring->next_to_use, 0);
+	atomic_set(&tpd_ring->next_to_clean, 0);
+
+	rfd_ring->next_to_clean = 0;
+	atomic_set(&rfd_ring->next_to_use, 0);
+
+	rrd_ring->next_to_use = 0;
+	atomic_set(&rrd_ring->next_to_clean, 0);
+}
+
+/**
+ * atl1_clean_rx_ring - Free RFD Buffers
+ * @adapter: board private structure
+ */
+static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
+{
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+	struct atl1_buffer *buffer_info;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned long size;
+	unsigned int i;
+
+	/* Free all the Rx ring sk_buffs */
+	for (i = 0; i < rfd_ring->count; i++) {
+		buffer_info = &rfd_ring->buffer_info[i];
+		if (buffer_info->dma) {
+			dma_unmap_page(&pdev->dev, buffer_info->dma,
+				       buffer_info->length, DMA_FROM_DEVICE);
+			buffer_info->dma = 0;
+		}
+		if (buffer_info->skb) {
+			dev_kfree_skb(buffer_info->skb);
+			buffer_info->skb = NULL;
+		}
+	}
+
+	size = sizeof(struct atl1_buffer) * rfd_ring->count;
+	memset(rfd_ring->buffer_info, 0, size);
+
+	/* Zero out the descriptor ring */
+	memset(rfd_ring->desc, 0, rfd_ring->size);
+
+	rfd_ring->next_to_clean = 0;
+	atomic_set(&rfd_ring->next_to_use, 0);
+
+	rrd_ring->next_to_use = 0;
+	atomic_set(&rrd_ring->next_to_clean, 0);
+}
+
+/**
+ * atl1_clean_tx_ring - Free Tx Buffers
+ * @adapter: board private structure
+ */
+static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_buffer *buffer_info;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned long size;
+	unsigned int i;
+
+	/* Free all the Tx ring sk_buffs */
+	for (i = 0; i < tpd_ring->count; i++) {
+		buffer_info = &tpd_ring->buffer_info[i];
+		if (buffer_info->dma) {
+			dma_unmap_page(&pdev->dev, buffer_info->dma,
+				       buffer_info->length, DMA_TO_DEVICE);
+			buffer_info->dma = 0;
+		}
+	}
+
+	for (i = 0; i < tpd_ring->count; i++) {
+		buffer_info = &tpd_ring->buffer_info[i];
+		if (buffer_info->skb) {
+			dev_kfree_skb_any(buffer_info->skb);
+			buffer_info->skb = NULL;
+		}
+	}
+
+	size = sizeof(struct atl1_buffer) * tpd_ring->count;
+	memset(tpd_ring->buffer_info, 0, size);
+
+	/* Zero out the descriptor ring */
+	memset(tpd_ring->desc, 0, tpd_ring->size);
+
+	atomic_set(&tpd_ring->next_to_use, 0);
+	atomic_set(&tpd_ring->next_to_clean, 0);
+}
+
+/**
+ * atl1_free_ring_resources - Free Tx / RX descriptor Resources
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ */
+static void atl1_free_ring_resources(struct atl1_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+	struct atl1_ring_header *ring_header = &adapter->ring_header;
+
+	atl1_clean_tx_ring(adapter);
+	atl1_clean_rx_ring(adapter);
+
+	kfree(tpd_ring->buffer_info);
+	dma_free_coherent(&pdev->dev, ring_header->size, ring_header->desc,
+			  ring_header->dma);
+
+	tpd_ring->buffer_info = NULL;
+	tpd_ring->desc = NULL;
+	tpd_ring->dma = 0;
+
+	rfd_ring->buffer_info = NULL;
+	rfd_ring->desc = NULL;
+	rfd_ring->dma = 0;
+
+	rrd_ring->desc = NULL;
+	rrd_ring->dma = 0;
+
+	adapter->cmb.dma = 0;
+	adapter->cmb.cmb = NULL;
+
+	adapter->smb.dma = 0;
+	adapter->smb.smb = NULL;
+}
+
+static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
+{
+	u32 value;
+	struct atl1_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	/* Config MAC CTRL Register */
+	value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
+	/* duplex */
+	if (FULL_DUPLEX == adapter->link_duplex)
+		value |= MAC_CTRL_DUPLX;
+	/* speed */
+	value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
+			 MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
+		  MAC_CTRL_SPEED_SHIFT);
+	/* flow control */
+	value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
+	/* PAD & CRC */
+	value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
+	/* preamble length */
+	value |= (((u32) adapter->hw.preamble_len
+		   & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
+	/* vlan */
+	__atlx_vlan_mode(netdev->features, &value);
+	/* rx checksum
+	   if (adapter->rx_csum)
+	   value |= MAC_CTRL_RX_CHKSUM_EN;
+	 */
+	/* filter mode */
+	value |= MAC_CTRL_BC_EN;
+	if (netdev->flags & IFF_PROMISC)
+		value |= MAC_CTRL_PROMIS_EN;
+	else if (netdev->flags & IFF_ALLMULTI)
+		value |= MAC_CTRL_MC_ALL_EN;
+	/* value |= MAC_CTRL_LOOPBACK; */
+	iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
+}
+
+static u32 atl1_check_link(struct atl1_adapter *adapter)
+{
+	struct atl1_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	u32 ret_val;
+	u16 speed, duplex, phy_data;
+	int reconfig = 0;
+
+	/* MII_BMSR must read twice */
+	atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
+	atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
+	if (!(phy_data & BMSR_LSTATUS)) {
+		/* link down */
+		if (netif_carrier_ok(netdev)) {
+			/* old link state: Up */
+			if (netif_msg_link(adapter))
+				dev_info(&adapter->pdev->dev, "link is down\n");
+			adapter->link_speed = SPEED_0;
+			netif_carrier_off(netdev);
+		}
+		return 0;
+	}
+
+	/* Link Up */
+	ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
+	if (ret_val)
+		return ret_val;
+
+	switch (hw->media_type) {
+	case MEDIA_TYPE_1000M_FULL:
+		if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_100M_FULL:
+		if (speed != SPEED_100 || duplex != FULL_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_100M_HALF:
+		if (speed != SPEED_100 || duplex != HALF_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_10M_FULL:
+		if (speed != SPEED_10 || duplex != FULL_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_10M_HALF:
+		if (speed != SPEED_10 || duplex != HALF_DUPLEX)
+			reconfig = 1;
+		break;
+	}
+
+	/* link result is our setting */
+	if (!reconfig) {
+		if (adapter->link_speed != speed ||
+		    adapter->link_duplex != duplex) {
+			adapter->link_speed = speed;
+			adapter->link_duplex = duplex;
+			atl1_setup_mac_ctrl(adapter);
+			if (netif_msg_link(adapter))
+				dev_info(&adapter->pdev->dev,
+					"%s link is up %d Mbps %s\n",
+					netdev->name, adapter->link_speed,
+					adapter->link_duplex == FULL_DUPLEX ?
+					"full duplex" : "half duplex");
+		}
+		if (!netif_carrier_ok(netdev)) {
+			/* Link down -> Up */
+			netif_carrier_on(netdev);
+		}
+		return 0;
+	}
+
+	/* change original link status */
+	if (netif_carrier_ok(netdev)) {
+		adapter->link_speed = SPEED_0;
+		netif_carrier_off(netdev);
+		netif_stop_queue(netdev);
+	}
+
+	if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
+	    hw->media_type != MEDIA_TYPE_1000M_FULL) {
+		switch (hw->media_type) {
+		case MEDIA_TYPE_100M_FULL:
+			phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+			           MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_100M_HALF:
+			phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_10M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		default:
+			/* MEDIA_TYPE_10M_HALF: */
+			phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		}
+		atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+		return 0;
+	}
+
+	/* auto-neg, insert timer to re-config phy */
+	if (!adapter->phy_timer_pending) {
+		adapter->phy_timer_pending = true;
+		mod_timer(&adapter->phy_config_timer,
+			  round_jiffies(jiffies + 3 * HZ));
+	}
+
+	return 0;
+}
+
+static void set_flow_ctrl_old(struct atl1_adapter *adapter)
+{
+	u32 hi, lo, value;
+
+	/* RFD Flow Control */
+	value = adapter->rfd_ring.count;
+	hi = value / 16;
+	if (hi < 2)
+		hi = 2;
+	lo = value * 7 / 8;
+
+	value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
+		((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
+	iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
+
+	/* RRD Flow Control */
+	value = adapter->rrd_ring.count;
+	lo = value / 16;
+	hi = value * 7 / 8;
+	if (lo < 2)
+		lo = 2;
+	value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
+		((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
+	iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
+}
+
+static void set_flow_ctrl_new(struct atl1_hw *hw)
+{
+	u32 hi, lo, value;
+
+	/* RXF Flow Control */
+	value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
+	lo = value / 16;
+	if (lo < 192)
+		lo = 192;
+	hi = value * 7 / 8;
+	if (hi < lo)
+		hi = lo + 16;
+	value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
+		((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
+
+	/* RRD Flow Control */
+	value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
+	lo = value / 8;
+	hi = value * 7 / 8;
+	if (lo < 2)
+		lo = 2;
+	if (hi < lo)
+		hi = lo + 3;
+	value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
+		((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
+}
+
+/**
+ * atl1_configure - Configure Transmit&Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx /Rx unit of the MAC after a reset.
+ */
+static u32 atl1_configure(struct atl1_adapter *adapter)
+{
+	struct atl1_hw *hw = &adapter->hw;
+	u32 value;
+
+	/* clear interrupt status */
+	iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
+
+	/* set MAC Address */
+	value = (((u32) hw->mac_addr[2]) << 24) |
+		(((u32) hw->mac_addr[3]) << 16) |
+		(((u32) hw->mac_addr[4]) << 8) |
+		(((u32) hw->mac_addr[5]));
+	iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
+	value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
+	iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
+
+	/* tx / rx ring */
+
+	/* HI base address */
+	iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
+		hw->hw_addr + REG_DESC_BASE_ADDR_HI);
+	/* LO base address */
+	iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
+		hw->hw_addr + REG_DESC_RFD_ADDR_LO);
+	iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
+		hw->hw_addr + REG_DESC_RRD_ADDR_LO);
+	iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
+		hw->hw_addr + REG_DESC_TPD_ADDR_LO);
+	iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
+		hw->hw_addr + REG_DESC_CMB_ADDR_LO);
+	iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
+		hw->hw_addr + REG_DESC_SMB_ADDR_LO);
+
+	/* element count */
+	value = adapter->rrd_ring.count;
+	value <<= 16;
+	value += adapter->rfd_ring.count;
+	iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
+	iowrite32(adapter->tpd_ring.count, hw->hw_addr +
+		REG_DESC_TPD_RING_SIZE);
+
+	/* Load Ptr */
+	iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
+
+	/* config Mailbox */
+	value = ((atomic_read(&adapter->tpd_ring.next_to_use)
+		  & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
+		((atomic_read(&adapter->rrd_ring.next_to_clean)
+		& MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
+		((atomic_read(&adapter->rfd_ring.next_to_use)
+		& MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_MAILBOX);
+
+	/* config IPG/IFG */
+	value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
+		 << MAC_IPG_IFG_IPGT_SHIFT) |
+		(((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
+		<< MAC_IPG_IFG_MIFG_SHIFT) |
+		(((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
+		<< MAC_IPG_IFG_IPGR1_SHIFT) |
+		(((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
+		<< MAC_IPG_IFG_IPGR2_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
+
+	/* config  Half-Duplex Control */
+	value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
+		(((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
+		<< MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
+		MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
+		(0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
+		(((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
+		<< MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
+
+	/* set Interrupt Moderator Timer */
+	iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
+	iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
+
+	/* set Interrupt Clear Timer */
+	iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
+
+	/* set max frame size hw will accept */
+	iowrite32(hw->max_frame_size, hw->hw_addr + REG_MTU);
+
+	/* jumbo size & rrd retirement timer */
+	value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
+		 << RXQ_JMBOSZ_TH_SHIFT) |
+		(((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
+		<< RXQ_JMBO_LKAH_SHIFT) |
+		(((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
+		<< RXQ_RRD_TIMER_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
+
+	/* Flow Control */
+	switch (hw->dev_rev) {
+	case 0x8001:
+	case 0x9001:
+	case 0x9002:
+	case 0x9003:
+		set_flow_ctrl_old(adapter);
+		break;
+	default:
+		set_flow_ctrl_new(hw);
+		break;
+	}
+
+	/* config TXQ */
+	value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
+		 << TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
+		(((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
+		<< TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
+		(((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
+		<< TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE |
+		TXQ_CTRL_EN;
+	iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
+
+	/* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
+	value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
+		<< TX_JUMBO_TASK_TH_SHIFT) |
+		(((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
+		<< TX_TPD_MIN_IPG_SHIFT);
+	iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
+
+	/* config RXQ */
+	value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
+		<< RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
+		(((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
+		<< RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
+		(((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
+		<< RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN |
+		RXQ_CTRL_EN;
+	iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
+
+	/* config DMA Engine */
+	value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
+		<< DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
+		((((u32) hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK)
+		<< DMA_CTRL_DMAW_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN |
+		DMA_CTRL_DMAW_EN;
+	value |= (u32) hw->dma_ord;
+	if (atl1_rcb_128 == hw->rcb_value)
+		value |= DMA_CTRL_RCB_VALUE;
+	iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
+
+	/* config CMB / SMB */
+	value = (hw->cmb_tpd > adapter->tpd_ring.count) ?
+		hw->cmb_tpd : adapter->tpd_ring.count;
+	value <<= 16;
+	value |= hw->cmb_rrd;
+	iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
+	value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
+	iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
+	iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
+
+	/* --- enable CMB / SMB */
+	value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
+	iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
+
+	value = ioread32(adapter->hw.hw_addr + REG_ISR);
+	if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
+		value = 1;	/* config failed */
+	else
+		value = 0;
+
+	/* clear all interrupt status */
+	iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
+	iowrite32(0, adapter->hw.hw_addr + REG_ISR);
+	return value;
+}
+
+/*
+ * atl1_pcie_patch - Patch for PCIE module
+ */
+static void atl1_pcie_patch(struct atl1_adapter *adapter)
+{
+	u32 value;
+
+	/* much vendor magic here */
+	value = 0x6500;
+	iowrite32(value, adapter->hw.hw_addr + 0x12FC);
+	/* pcie flow control mode change */
+	value = ioread32(adapter->hw.hw_addr + 0x1008);
+	value |= 0x8000;
+	iowrite32(value, adapter->hw.hw_addr + 0x1008);
+}
+
+/*
+ * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
+ * on PCI Command register is disable.
+ * The function enable this bit.
+ * Brackett, 2006/03/15
+ */
+static void atl1_via_workaround(struct atl1_adapter *adapter)
+{
+	unsigned long value;
+
+	value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
+	if (value & PCI_COMMAND_INTX_DISABLE)
+		value &= ~PCI_COMMAND_INTX_DISABLE;
+	iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
+}
+
+static void atl1_inc_smb(struct atl1_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct stats_msg_block *smb = adapter->smb.smb;
+
+	u64 new_rx_errors = smb->rx_frag +
+			    smb->rx_fcs_err +
+			    smb->rx_len_err +
+			    smb->rx_sz_ov +
+			    smb->rx_rxf_ov +
+			    smb->rx_rrd_ov +
+			    smb->rx_align_err;
+	u64 new_tx_errors = smb->tx_late_col +
+			    smb->tx_abort_col +
+			    smb->tx_underrun +
+			    smb->tx_trunc;
+
+	/* Fill out the OS statistics structure */
+	adapter->soft_stats.rx_packets += smb->rx_ok + new_rx_errors;
+	adapter->soft_stats.tx_packets += smb->tx_ok + new_tx_errors;
+	adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
+	adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
+	adapter->soft_stats.multicast += smb->rx_mcast;
+	adapter->soft_stats.collisions += smb->tx_1_col +
+					  smb->tx_2_col +
+					  smb->tx_late_col +
+					  smb->tx_abort_col;
+
+	/* Rx Errors */
+	adapter->soft_stats.rx_errors += new_rx_errors;
+	adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
+	adapter->soft_stats.rx_length_errors += smb->rx_len_err;
+	adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
+	adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
+
+	adapter->soft_stats.rx_pause += smb->rx_pause;
+	adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
+	adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
+
+	/* Tx Errors */
+	adapter->soft_stats.tx_errors += new_tx_errors;
+	adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
+	adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
+	adapter->soft_stats.tx_window_errors += smb->tx_late_col;
+
+	adapter->soft_stats.excecol += smb->tx_abort_col;
+	adapter->soft_stats.deffer += smb->tx_defer;
+	adapter->soft_stats.scc += smb->tx_1_col;
+	adapter->soft_stats.mcc += smb->tx_2_col;
+	adapter->soft_stats.latecol += smb->tx_late_col;
+	adapter->soft_stats.tx_underrun += smb->tx_underrun;
+	adapter->soft_stats.tx_trunc += smb->tx_trunc;
+	adapter->soft_stats.tx_pause += smb->tx_pause;
+
+	netdev->stats.rx_bytes = adapter->soft_stats.rx_bytes;
+	netdev->stats.tx_bytes = adapter->soft_stats.tx_bytes;
+	netdev->stats.multicast = adapter->soft_stats.multicast;
+	netdev->stats.collisions = adapter->soft_stats.collisions;
+	netdev->stats.rx_errors = adapter->soft_stats.rx_errors;
+	netdev->stats.rx_length_errors =
+		adapter->soft_stats.rx_length_errors;
+	netdev->stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
+	netdev->stats.rx_frame_errors =
+		adapter->soft_stats.rx_frame_errors;
+	netdev->stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
+	netdev->stats.rx_dropped = adapter->soft_stats.rx_rrd_ov;
+	netdev->stats.tx_errors = adapter->soft_stats.tx_errors;
+	netdev->stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
+	netdev->stats.tx_aborted_errors =
+		adapter->soft_stats.tx_aborted_errors;
+	netdev->stats.tx_window_errors =
+		adapter->soft_stats.tx_window_errors;
+	netdev->stats.tx_carrier_errors =
+		adapter->soft_stats.tx_carrier_errors;
+
+	netdev->stats.rx_packets = adapter->soft_stats.rx_packets;
+	netdev->stats.tx_packets = adapter->soft_stats.tx_packets;
+}
+
+static void atl1_update_mailbox(struct atl1_adapter *adapter)
+{
+	unsigned long flags;
+	u32 tpd_next_to_use;
+	u32 rfd_next_to_use;
+	u32 rrd_next_to_clean;
+	u32 value;
+
+	spin_lock_irqsave(&adapter->mb_lock, flags);
+
+	tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
+	rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
+	rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
+
+	value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
+		MB_RFD_PROD_INDX_SHIFT) |
+		((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
+		MB_RRD_CONS_INDX_SHIFT) |
+		((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
+		MB_TPD_PROD_INDX_SHIFT);
+	iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
+
+	spin_unlock_irqrestore(&adapter->mb_lock, flags);
+}
+
+static void atl1_clean_alloc_flag(struct atl1_adapter *adapter,
+	struct rx_return_desc *rrd, u16 offset)
+{
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+
+	while (rfd_ring->next_to_clean != (rrd->buf_indx + offset)) {
+		rfd_ring->buffer_info[rfd_ring->next_to_clean].alloced = 0;
+		if (++rfd_ring->next_to_clean == rfd_ring->count) {
+			rfd_ring->next_to_clean = 0;
+		}
+	}
+}
+
+static void atl1_update_rfd_index(struct atl1_adapter *adapter,
+	struct rx_return_desc *rrd)
+{
+	u16 num_buf;
+
+	num_buf = (rrd->xsz.xsum_sz.pkt_size + adapter->rx_buffer_len - 1) /
+		adapter->rx_buffer_len;
+	if (rrd->num_buf == num_buf)
+		/* clean alloc flag for bad rrd */
+		atl1_clean_alloc_flag(adapter, rrd, num_buf);
+}
+
+static void atl1_rx_checksum(struct atl1_adapter *adapter,
+	struct rx_return_desc *rrd, struct sk_buff *skb)
+{
+	struct pci_dev *pdev = adapter->pdev;
+
+	/*
+	 * The L1 hardware contains a bug that erroneously sets the
+	 * PACKET_FLAG_ERR and ERR_FLAG_L4_CHKSUM bits whenever a
+	 * fragmented IP packet is received, even though the packet
+	 * is perfectly valid and its checksum is correct. There's
+	 * no way to distinguish between one of these good packets
+	 * and a packet that actually contains a TCP/UDP checksum
+	 * error, so all we can do is allow it to be handed up to
+	 * the higher layers and let it be sorted out there.
+	 */
+
+	skb_checksum_none_assert(skb);
+
+	if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
+		if (rrd->err_flg & (ERR_FLAG_CRC | ERR_FLAG_TRUNC |
+					ERR_FLAG_CODE | ERR_FLAG_OV)) {
+			adapter->hw_csum_err++;
+			if (netif_msg_rx_err(adapter))
+				dev_printk(KERN_DEBUG, &pdev->dev,
+					"rx checksum error\n");
+			return;
+		}
+	}
+
+	/* not IPv4 */
+	if (!(rrd->pkt_flg & PACKET_FLAG_IPV4))
+		/* checksum is invalid, but it's not an IPv4 pkt, so ok */
+		return;
+
+	/* IPv4 packet */
+	if (likely(!(rrd->err_flg &
+		(ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM)))) {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		adapter->hw_csum_good++;
+		return;
+	}
+}
+
+/**
+ * atl1_alloc_rx_buffers - Replace used receive buffers
+ * @adapter: address of board private structure
+ */
+static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
+{
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct pci_dev *pdev = adapter->pdev;
+	struct page *page;
+	unsigned long offset;
+	struct atl1_buffer *buffer_info, *next_info;
+	struct sk_buff *skb;
+	u16 num_alloc = 0;
+	u16 rfd_next_to_use, next_next;
+	struct rx_free_desc *rfd_desc;
+
+	next_next = rfd_next_to_use = atomic_read(&rfd_ring->next_to_use);
+	if (++next_next == rfd_ring->count)
+		next_next = 0;
+	buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
+	next_info = &rfd_ring->buffer_info[next_next];
+
+	while (!buffer_info->alloced && !next_info->alloced) {
+		if (buffer_info->skb) {
+			buffer_info->alloced = 1;
+			goto next;
+		}
+
+		rfd_desc = ATL1_RFD_DESC(rfd_ring, rfd_next_to_use);
+
+		skb = netdev_alloc_skb_ip_align(adapter->netdev,
+						adapter->rx_buffer_len);
+		if (unlikely(!skb)) {
+			/* Better luck next round */
+			adapter->soft_stats.rx_dropped++;
+			break;
+		}
+
+		buffer_info->alloced = 1;
+		buffer_info->skb = skb;
+		buffer_info->length = (u16) adapter->rx_buffer_len;
+		page = virt_to_page(skb->data);
+		offset = offset_in_page(skb->data);
+		buffer_info->dma = dma_map_page(&pdev->dev, page, offset,
+						adapter->rx_buffer_len,
+						DMA_FROM_DEVICE);
+		rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+		rfd_desc->buf_len = cpu_to_le16(adapter->rx_buffer_len);
+		rfd_desc->coalese = 0;
+
+next:
+		rfd_next_to_use = next_next;
+		if (unlikely(++next_next == rfd_ring->count))
+			next_next = 0;
+
+		buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
+		next_info = &rfd_ring->buffer_info[next_next];
+		num_alloc++;
+	}
+
+	if (num_alloc) {
+		/*
+		 * Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.  (Only
+		 * applicable for weak-ordered memory model archs,
+		 * such as IA-64).
+		 */
+		wmb();
+		atomic_set(&rfd_ring->next_to_use, (int)rfd_next_to_use);
+	}
+	return num_alloc;
+}
+
+static int atl1_intr_rx(struct atl1_adapter *adapter, int budget)
+{
+	int i, count;
+	u16 length;
+	u16 rrd_next_to_clean;
+	u32 value;
+	struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
+	struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
+	struct atl1_buffer *buffer_info;
+	struct rx_return_desc *rrd;
+	struct sk_buff *skb;
+
+	count = 0;
+
+	rrd_next_to_clean = atomic_read(&rrd_ring->next_to_clean);
+
+	while (count < budget) {
+		rrd = ATL1_RRD_DESC(rrd_ring, rrd_next_to_clean);
+		i = 1;
+		if (likely(rrd->xsz.valid)) {	/* packet valid */
+chk_rrd:
+			/* check rrd status */
+			if (likely(rrd->num_buf == 1))
+				goto rrd_ok;
+			else if (netif_msg_rx_err(adapter)) {
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"unexpected RRD buffer count\n");
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"rx_buf_len = %d\n",
+					adapter->rx_buffer_len);
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"RRD num_buf = %d\n",
+					rrd->num_buf);
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"RRD pkt_len = %d\n",
+					rrd->xsz.xsum_sz.pkt_size);
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"RRD pkt_flg = 0x%08X\n",
+					rrd->pkt_flg);
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"RRD err_flg = 0x%08X\n",
+					rrd->err_flg);
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"RRD vlan_tag = 0x%08X\n",
+					rrd->vlan_tag);
+			}
+
+			/* rrd seems to be bad */
+			if (unlikely(i-- > 0)) {
+				/* rrd may not be DMAed completely */
+				udelay(1);
+				goto chk_rrd;
+			}
+			/* bad rrd */
+			if (netif_msg_rx_err(adapter))
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"bad RRD\n");
+			/* see if update RFD index */
+			if (rrd->num_buf > 1)
+				atl1_update_rfd_index(adapter, rrd);
+
+			/* update rrd */
+			rrd->xsz.valid = 0;
+			if (++rrd_next_to_clean == rrd_ring->count)
+				rrd_next_to_clean = 0;
+			count++;
+			continue;
+		} else {	/* current rrd still not be updated */
+
+			break;
+		}
+rrd_ok:
+		/* clean alloc flag for bad rrd */
+		atl1_clean_alloc_flag(adapter, rrd, 0);
+
+		buffer_info = &rfd_ring->buffer_info[rrd->buf_indx];
+		if (++rfd_ring->next_to_clean == rfd_ring->count)
+			rfd_ring->next_to_clean = 0;
+
+		/* update rrd next to clean */
+		if (++rrd_next_to_clean == rrd_ring->count)
+			rrd_next_to_clean = 0;
+		count++;
+
+		if (unlikely(rrd->pkt_flg & PACKET_FLAG_ERR)) {
+			if (!(rrd->err_flg &
+				(ERR_FLAG_IP_CHKSUM | ERR_FLAG_L4_CHKSUM
+				| ERR_FLAG_LEN))) {
+				/* packet error, don't need upstream */
+				buffer_info->alloced = 0;
+				rrd->xsz.valid = 0;
+				continue;
+			}
+		}
+
+		/* Good Receive */
+		dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
+			       buffer_info->length, DMA_FROM_DEVICE);
+		buffer_info->dma = 0;
+		skb = buffer_info->skb;
+		length = le16_to_cpu(rrd->xsz.xsum_sz.pkt_size);
+
+		skb_put(skb, length - ETH_FCS_LEN);
+
+		/* Receive Checksum Offload */
+		atl1_rx_checksum(adapter, rrd, skb);
+		skb->protocol = eth_type_trans(skb, adapter->netdev);
+
+		if (rrd->pkt_flg & PACKET_FLAG_VLAN_INS) {
+			u16 vlan_tag = (rrd->vlan_tag >> 4) |
+					((rrd->vlan_tag & 7) << 13) |
+					((rrd->vlan_tag & 8) << 9);
+
+			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
+		}
+		netif_receive_skb(skb);
+
+		/* let protocol layer free skb */
+		buffer_info->skb = NULL;
+		buffer_info->alloced = 0;
+		rrd->xsz.valid = 0;
+	}
+
+	atomic_set(&rrd_ring->next_to_clean, rrd_next_to_clean);
+
+	atl1_alloc_rx_buffers(adapter);
+
+	/* update mailbox ? */
+	if (count) {
+		u32 tpd_next_to_use;
+		u32 rfd_next_to_use;
+
+		spin_lock(&adapter->mb_lock);
+
+		tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
+		rfd_next_to_use =
+		    atomic_read(&adapter->rfd_ring.next_to_use);
+		rrd_next_to_clean =
+		    atomic_read(&adapter->rrd_ring.next_to_clean);
+		value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
+			MB_RFD_PROD_INDX_SHIFT) |
+                        ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
+			MB_RRD_CONS_INDX_SHIFT) |
+                        ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
+			MB_TPD_PROD_INDX_SHIFT);
+		iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
+		spin_unlock(&adapter->mb_lock);
+	}
+
+	return count;
+}
+
+static int atl1_intr_tx(struct atl1_adapter *adapter)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_buffer *buffer_info;
+	u16 sw_tpd_next_to_clean;
+	u16 cmb_tpd_next_to_clean;
+	int count = 0;
+
+	sw_tpd_next_to_clean = atomic_read(&tpd_ring->next_to_clean);
+	cmb_tpd_next_to_clean = le16_to_cpu(adapter->cmb.cmb->tpd_cons_idx);
+
+	while (cmb_tpd_next_to_clean != sw_tpd_next_to_clean) {
+		buffer_info = &tpd_ring->buffer_info[sw_tpd_next_to_clean];
+		if (buffer_info->dma) {
+			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
+				       buffer_info->length, DMA_TO_DEVICE);
+			buffer_info->dma = 0;
+		}
+
+		if (buffer_info->skb) {
+			dev_consume_skb_irq(buffer_info->skb);
+			buffer_info->skb = NULL;
+		}
+
+		if (++sw_tpd_next_to_clean == tpd_ring->count)
+			sw_tpd_next_to_clean = 0;
+
+		count++;
+	}
+	atomic_set(&tpd_ring->next_to_clean, sw_tpd_next_to_clean);
+
+	if (netif_queue_stopped(adapter->netdev) &&
+	    netif_carrier_ok(adapter->netdev))
+		netif_wake_queue(adapter->netdev);
+
+	return count;
+}
+
+static u16 atl1_tpd_avail(struct atl1_tpd_ring *tpd_ring)
+{
+	u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
+	u16 next_to_use = atomic_read(&tpd_ring->next_to_use);
+	return (next_to_clean > next_to_use) ?
+		next_to_clean - next_to_use - 1 :
+		tpd_ring->count + next_to_clean - next_to_use - 1;
+}
+
+static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
+		    struct tx_packet_desc *ptpd)
+{
+	u8 hdr_len, ip_off;
+	u32 real_len;
+
+	if (skb_shinfo(skb)->gso_size) {
+		int err;
+
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
+			return err;
+
+		if (skb->protocol == htons(ETH_P_IP)) {
+			struct iphdr *iph = ip_hdr(skb);
+
+			real_len = (((unsigned char *)iph - skb->data) +
+				ntohs(iph->tot_len));
+			if (real_len < skb->len) {
+				err = pskb_trim(skb, real_len);
+				if (err)
+					return err;
+			}
+			hdr_len = skb_tcp_all_headers(skb);
+			if (skb->len == hdr_len) {
+				iph->check = 0;
+				tcp_hdr(skb)->check =
+					~csum_tcpudp_magic(iph->saddr,
+					iph->daddr, tcp_hdrlen(skb),
+					IPPROTO_TCP, 0);
+				ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) <<
+					TPD_IPHL_SHIFT;
+				ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) &
+					TPD_TCPHDRLEN_MASK) <<
+					TPD_TCPHDRLEN_SHIFT;
+				ptpd->word3 |= 1 << TPD_IP_CSUM_SHIFT;
+				ptpd->word3 |= 1 << TPD_TCP_CSUM_SHIFT;
+				return 1;
+			}
+
+			iph->check = 0;
+			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+					iph->daddr, 0, IPPROTO_TCP, 0);
+			ip_off = (unsigned char *)iph -
+				(unsigned char *) skb_network_header(skb);
+			if (ip_off == 8) /* 802.3-SNAP frame */
+				ptpd->word3 |= 1 << TPD_ETHTYPE_SHIFT;
+			else if (ip_off != 0)
+				return -2;
+
+			ptpd->word3 |= (iph->ihl & TPD_IPHL_MASK) <<
+				TPD_IPHL_SHIFT;
+			ptpd->word3 |= ((tcp_hdrlen(skb) >> 2) &
+				TPD_TCPHDRLEN_MASK) << TPD_TCPHDRLEN_SHIFT;
+			ptpd->word3 |= (skb_shinfo(skb)->gso_size &
+				TPD_MSS_MASK) << TPD_MSS_SHIFT;
+			ptpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT;
+			return 3;
+		}
+	}
+	return 0;
+}
+
+static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb,
+	struct tx_packet_desc *ptpd)
+{
+	u8 css, cso;
+
+	if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
+		css = skb_checksum_start_offset(skb);
+		cso = css + (u8) skb->csum_offset;
+		if (unlikely(css & 0x1)) {
+			/* L1 hardware requires an even number here */
+			if (netif_msg_tx_err(adapter))
+				dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+					"payload offset not an even number\n");
+			return -1;
+		}
+		ptpd->word3 |= (css & TPD_PLOADOFFSET_MASK) <<
+			TPD_PLOADOFFSET_SHIFT;
+		ptpd->word3 |= (cso & TPD_CCSUMOFFSET_MASK) <<
+			TPD_CCSUMOFFSET_SHIFT;
+		ptpd->word3 |= 1 << TPD_CUST_CSUM_EN_SHIFT;
+		return true;
+	}
+	return 0;
+}
+
+static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb,
+	struct tx_packet_desc *ptpd)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_buffer *buffer_info;
+	u16 buf_len = skb->len;
+	struct page *page;
+	unsigned long offset;
+	unsigned int nr_frags;
+	unsigned int f;
+	int retval;
+	u16 next_to_use;
+	u16 data_len;
+	u8 hdr_len;
+
+	buf_len -= skb->data_len;
+	nr_frags = skb_shinfo(skb)->nr_frags;
+	next_to_use = atomic_read(&tpd_ring->next_to_use);
+	buffer_info = &tpd_ring->buffer_info[next_to_use];
+	BUG_ON(buffer_info->skb);
+	/* put skb in last TPD */
+	buffer_info->skb = NULL;
+
+	retval = (ptpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK;
+	if (retval) {
+		/* TSO */
+		hdr_len = skb_tcp_all_headers(skb);
+		buffer_info->length = hdr_len;
+		page = virt_to_page(skb->data);
+		offset = offset_in_page(skb->data);
+		buffer_info->dma = dma_map_page(&adapter->pdev->dev, page,
+						offset, hdr_len,
+						DMA_TO_DEVICE);
+
+		if (++next_to_use == tpd_ring->count)
+			next_to_use = 0;
+
+		if (buf_len > hdr_len) {
+			int i, nseg;
+
+			data_len = buf_len - hdr_len;
+			nseg = (data_len + ATL1_MAX_TX_BUF_LEN - 1) /
+				ATL1_MAX_TX_BUF_LEN;
+			for (i = 0; i < nseg; i++) {
+				buffer_info =
+				    &tpd_ring->buffer_info[next_to_use];
+				buffer_info->skb = NULL;
+				buffer_info->length =
+				    (ATL1_MAX_TX_BUF_LEN >=
+				     data_len) ? ATL1_MAX_TX_BUF_LEN : data_len;
+				data_len -= buffer_info->length;
+				page = virt_to_page(skb->data +
+					(hdr_len + i * ATL1_MAX_TX_BUF_LEN));
+				offset = offset_in_page(skb->data +
+					(hdr_len + i * ATL1_MAX_TX_BUF_LEN));
+				buffer_info->dma = dma_map_page(&adapter->pdev->dev,
+								page, offset,
+								buffer_info->length,
+								DMA_TO_DEVICE);
+				if (++next_to_use == tpd_ring->count)
+					next_to_use = 0;
+			}
+		}
+	} else {
+		/* not TSO */
+		buffer_info->length = buf_len;
+		page = virt_to_page(skb->data);
+		offset = offset_in_page(skb->data);
+		buffer_info->dma = dma_map_page(&adapter->pdev->dev, page,
+						offset, buf_len,
+						DMA_TO_DEVICE);
+		if (++next_to_use == tpd_ring->count)
+			next_to_use = 0;
+	}
+
+	for (f = 0; f < nr_frags; f++) {
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
+		u16 i, nseg;
+
+		buf_len = skb_frag_size(frag);
+
+		nseg = (buf_len + ATL1_MAX_TX_BUF_LEN - 1) /
+			ATL1_MAX_TX_BUF_LEN;
+		for (i = 0; i < nseg; i++) {
+			buffer_info = &tpd_ring->buffer_info[next_to_use];
+			BUG_ON(buffer_info->skb);
+
+			buffer_info->skb = NULL;
+			buffer_info->length = (buf_len > ATL1_MAX_TX_BUF_LEN) ?
+				ATL1_MAX_TX_BUF_LEN : buf_len;
+			buf_len -= buffer_info->length;
+			buffer_info->dma = skb_frag_dma_map(&adapter->pdev->dev,
+				frag, i * ATL1_MAX_TX_BUF_LEN,
+				buffer_info->length, DMA_TO_DEVICE);
+
+			if (++next_to_use == tpd_ring->count)
+				next_to_use = 0;
+		}
+	}
+
+	/* last tpd's buffer-info */
+	buffer_info->skb = skb;
+}
+
+static void atl1_tx_queue(struct atl1_adapter *adapter, u16 count,
+       struct tx_packet_desc *ptpd)
+{
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	struct atl1_buffer *buffer_info;
+	struct tx_packet_desc *tpd;
+	u16 j;
+	u32 val;
+	u16 next_to_use = (u16) atomic_read(&tpd_ring->next_to_use);
+
+	for (j = 0; j < count; j++) {
+		buffer_info = &tpd_ring->buffer_info[next_to_use];
+		tpd = ATL1_TPD_DESC(&adapter->tpd_ring, next_to_use);
+		if (tpd != ptpd)
+			memcpy(tpd, ptpd, sizeof(struct tx_packet_desc));
+		tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
+		tpd->word2 &= ~(TPD_BUFLEN_MASK << TPD_BUFLEN_SHIFT);
+		tpd->word2 |= (cpu_to_le16(buffer_info->length) &
+			TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT;
+
+		/*
+		 * if this is the first packet in a TSO chain, set
+		 * TPD_HDRFLAG, otherwise, clear it.
+		 */
+		val = (tpd->word3 >> TPD_SEGMENT_EN_SHIFT) &
+			TPD_SEGMENT_EN_MASK;
+		if (val) {
+			if (!j)
+				tpd->word3 |= 1 << TPD_HDRFLAG_SHIFT;
+			else
+				tpd->word3 &= ~(1 << TPD_HDRFLAG_SHIFT);
+		}
+
+		if (j == (count - 1))
+			tpd->word3 |= 1 << TPD_EOP_SHIFT;
+
+		if (++next_to_use == tpd_ring->count)
+			next_to_use = 0;
+	}
+	/*
+	 * Force memory writes to complete before letting h/w
+	 * know there are new descriptors to fetch.  (Only
+	 * applicable for weak-ordered memory model archs,
+	 * such as IA-64).
+	 */
+	wmb();
+
+	atomic_set(&tpd_ring->next_to_use, next_to_use);
+}
+
+static netdev_tx_t atl1_xmit_frame(struct sk_buff *skb,
+					 struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
+	int len;
+	int tso;
+	int count = 1;
+	int ret_val;
+	struct tx_packet_desc *ptpd;
+	u16 vlan_tag;
+	unsigned int nr_frags = 0;
+	unsigned int mss = 0;
+	unsigned int f;
+	unsigned int proto_hdr_len;
+
+	len = skb_headlen(skb);
+
+	if (unlikely(skb->len <= 0)) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	nr_frags = skb_shinfo(skb)->nr_frags;
+	for (f = 0; f < nr_frags; f++) {
+		unsigned int f_size = skb_frag_size(&skb_shinfo(skb)->frags[f]);
+		count += (f_size + ATL1_MAX_TX_BUF_LEN - 1) /
+			 ATL1_MAX_TX_BUF_LEN;
+	}
+
+	mss = skb_shinfo(skb)->gso_size;
+	if (mss) {
+		if (skb->protocol == htons(ETH_P_IP)) {
+			proto_hdr_len = skb_tcp_all_headers(skb);
+			if (unlikely(proto_hdr_len > len)) {
+				dev_kfree_skb_any(skb);
+				return NETDEV_TX_OK;
+			}
+			/* need additional TPD ? */
+			if (proto_hdr_len != len)
+				count += (len - proto_hdr_len +
+					ATL1_MAX_TX_BUF_LEN - 1) /
+					ATL1_MAX_TX_BUF_LEN;
+		}
+	}
+
+	if (atl1_tpd_avail(&adapter->tpd_ring) < count) {
+		/* not enough descriptors */
+		netif_stop_queue(netdev);
+		if (netif_msg_tx_queued(adapter))
+			dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+				"tx busy\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	ptpd = ATL1_TPD_DESC(tpd_ring,
+		(u16) atomic_read(&tpd_ring->next_to_use));
+	memset(ptpd, 0, sizeof(struct tx_packet_desc));
+
+	if (skb_vlan_tag_present(skb)) {
+		vlan_tag = skb_vlan_tag_get(skb);
+		vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) |
+			((vlan_tag >> 9) & 0x8);
+		ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT;
+		ptpd->word2 |= (vlan_tag & TPD_VLANTAG_MASK) <<
+			TPD_VLANTAG_SHIFT;
+	}
+
+	tso = atl1_tso(adapter, skb, ptpd);
+	if (tso < 0) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (!tso) {
+		ret_val = atl1_tx_csum(adapter, skb, ptpd);
+		if (ret_val < 0) {
+			dev_kfree_skb_any(skb);
+			return NETDEV_TX_OK;
+		}
+	}
+
+	atl1_tx_map(adapter, skb, ptpd);
+	atl1_tx_queue(adapter, count, ptpd);
+	atl1_update_mailbox(adapter);
+	return NETDEV_TX_OK;
+}
+
+static int atl1_rings_clean(struct napi_struct *napi, int budget)
+{
+	struct atl1_adapter *adapter = container_of(napi, struct atl1_adapter, napi);
+	int work_done = atl1_intr_rx(adapter, budget);
+
+	if (atl1_intr_tx(adapter))
+		work_done = budget;
+
+	/* Let's come again to process some more packets */
+	if (work_done >= budget)
+		return work_done;
+
+	napi_complete_done(napi, work_done);
+	/* re-enable Interrupt */
+	if (likely(adapter->int_enabled))
+		atlx_imr_set(adapter, IMR_NORMAL_MASK);
+	return work_done;
+}
+
+static inline int atl1_sched_rings_clean(struct atl1_adapter* adapter)
+{
+	if (!napi_schedule_prep(&adapter->napi))
+		/* It is possible in case even the RX/TX ints are disabled via IMR
+		 * register the ISR bits are set anyway (but do not produce IRQ).
+		 * To handle such situation the napi functions used to check is
+		 * something scheduled or not.
+		 */
+		return 0;
+
+	__napi_schedule(&adapter->napi);
+
+	/*
+	 * Disable RX/TX ints via IMR register if it is
+	 * allowed. NAPI handler must reenable them in same
+	 * way.
+	 */
+	if (!adapter->int_enabled)
+		return 1;
+
+	atlx_imr_set(adapter, IMR_NORXTX_MASK);
+	return 1;
+}
+
+/**
+ * atl1_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ */
+static irqreturn_t atl1_intr(int irq, void *data)
+{
+	struct atl1_adapter *adapter = netdev_priv(data);
+	u32 status;
+
+	status = adapter->cmb.cmb->int_stats;
+	if (!status)
+		return IRQ_NONE;
+
+	/* clear CMB interrupt status at once,
+	 * but leave rx/tx interrupt status in case it should be dropped
+	 * only if rx/tx processing queued. In other case interrupt
+	 * can be lost.
+	 */
+	adapter->cmb.cmb->int_stats = status & (ISR_CMB_TX | ISR_CMB_RX);
+
+	if (status & ISR_GPHY)	/* clear phy status */
+		atlx_clear_phy_int(adapter);
+
+	/* clear ISR status, and Enable CMB DMA/Disable Interrupt */
+	iowrite32(status | ISR_DIS_INT, adapter->hw.hw_addr + REG_ISR);
+
+	/* check if SMB intr */
+	if (status & ISR_SMB)
+		atl1_inc_smb(adapter);
+
+	/* check if PCIE PHY Link down */
+	if (status & ISR_PHY_LINKDOWN) {
+		if (netif_msg_intr(adapter))
+			dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+				"pcie phy link down %x\n", status);
+		if (netif_running(adapter->netdev)) {	/* reset MAC */
+			atlx_irq_disable(adapter);
+			schedule_work(&adapter->reset_dev_task);
+			return IRQ_HANDLED;
+		}
+	}
+
+	/* check if DMA read/write error ? */
+	if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
+		if (netif_msg_intr(adapter))
+			dev_printk(KERN_DEBUG, &adapter->pdev->dev,
+				"pcie DMA r/w error (status = 0x%x)\n",
+				status);
+		atlx_irq_disable(adapter);
+		schedule_work(&adapter->reset_dev_task);
+		return IRQ_HANDLED;
+	}
+
+	/* link event */
+	if (status & ISR_GPHY) {
+		adapter->soft_stats.tx_carrier_errors++;
+		atl1_check_for_link(adapter);
+	}
+
+	/* transmit or receive event */
+	if (status & (ISR_CMB_TX | ISR_CMB_RX) &&
+	    atl1_sched_rings_clean(adapter))
+		adapter->cmb.cmb->int_stats = adapter->cmb.cmb->int_stats &
+					      ~(ISR_CMB_TX | ISR_CMB_RX);
+
+	/* rx exception */
+	if (unlikely(status & (ISR_RXF_OV | ISR_RFD_UNRUN |
+		ISR_RRD_OV | ISR_HOST_RFD_UNRUN |
+		ISR_HOST_RRD_OV))) {
+		if (netif_msg_intr(adapter))
+			dev_printk(KERN_DEBUG,
+				&adapter->pdev->dev,
+				"rx exception, ISR = 0x%x\n",
+				status);
+		atl1_sched_rings_clean(adapter);
+	}
+
+	/* re-enable Interrupt */
+	iowrite32(ISR_DIS_SMB | ISR_DIS_DMA, adapter->hw.hw_addr + REG_ISR);
+	return IRQ_HANDLED;
+}
+
+
+/**
+ * atl1_phy_config - Timer Call-back
+ * @t: timer_list containing pointer to netdev cast into an unsigned long
+ */
+static void atl1_phy_config(struct timer_list *t)
+{
+	struct atl1_adapter *adapter = from_timer(adapter, t,
+						  phy_config_timer);
+	struct atl1_hw *hw = &adapter->hw;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	adapter->phy_timer_pending = false;
+	atl1_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
+	atl1_write_phy_reg(hw, MII_ATLX_CR, hw->mii_1000t_ctrl_reg);
+	atl1_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+/*
+ * Orphaned vendor comment left intact here:
+ * <vendor comment>
+ * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
+ * will assert. We do soft reset <0x1400=1> according
+ * with the SPEC. BUT, it seemes that PCIE or DMA
+ * state-machine will not be reset. DMAR_TO_INT will
+ * assert again and again.
+ * </vendor comment>
+ */
+
+static int atl1_reset(struct atl1_adapter *adapter)
+{
+	int ret;
+	ret = atl1_reset_hw(&adapter->hw);
+	if (ret)
+		return ret;
+	return atl1_init_hw(&adapter->hw);
+}
+
+static s32 atl1_up(struct atl1_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	int err;
+	int irq_flags = 0;
+
+	/* hardware has been reset, we need to reload some things */
+	atlx_set_multi(netdev);
+	atl1_init_ring_ptrs(adapter);
+	atlx_restore_vlan(adapter);
+	err = atl1_alloc_rx_buffers(adapter);
+	if (unlikely(!err))
+		/* no RX BUFFER allocated */
+		return -ENOMEM;
+
+	if (unlikely(atl1_configure(adapter))) {
+		err = -EIO;
+		goto err_up;
+	}
+
+	err = pci_enable_msi(adapter->pdev);
+	if (err) {
+		if (netif_msg_ifup(adapter))
+			dev_info(&adapter->pdev->dev,
+				"Unable to enable MSI: %d\n", err);
+		irq_flags |= IRQF_SHARED;
+	}
+
+	err = request_irq(adapter->pdev->irq, atl1_intr, irq_flags,
+			netdev->name, netdev);
+	if (unlikely(err))
+		goto err_up;
+
+	napi_enable(&adapter->napi);
+	atlx_irq_enable(adapter);
+	atl1_check_link(adapter);
+	netif_start_queue(netdev);
+	return 0;
+
+err_up:
+	pci_disable_msi(adapter->pdev);
+	/* free rx_buffers */
+	atl1_clean_rx_ring(adapter);
+	return err;
+}
+
+static void atl1_down(struct atl1_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	napi_disable(&adapter->napi);
+	netif_stop_queue(netdev);
+	del_timer_sync(&adapter->phy_config_timer);
+	adapter->phy_timer_pending = false;
+
+	atlx_irq_disable(adapter);
+	free_irq(adapter->pdev->irq, netdev);
+	pci_disable_msi(adapter->pdev);
+	atl1_reset_hw(&adapter->hw);
+	adapter->cmb.cmb->int_stats = 0;
+
+	adapter->link_speed = SPEED_0;
+	adapter->link_duplex = -1;
+	netif_carrier_off(netdev);
+
+	atl1_clean_tx_ring(adapter);
+	atl1_clean_rx_ring(adapter);
+}
+
+static void atl1_reset_dev_task(struct work_struct *work)
+{
+	struct atl1_adapter *adapter =
+		container_of(work, struct atl1_adapter, reset_dev_task);
+	struct net_device *netdev = adapter->netdev;
+
+	netif_device_detach(netdev);
+	atl1_down(adapter);
+	atl1_up(adapter);
+	netif_device_attach(netdev);
+}
+
+/**
+ * atl1_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atl1_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+
+	adapter->hw.max_frame_size = max_frame;
+	adapter->hw.tx_jumbo_task_th = (max_frame + 7) >> 3;
+	adapter->rx_buffer_len = (max_frame + 7) & ~7;
+	adapter->hw.rx_jumbo_th = adapter->rx_buffer_len / 8;
+
+	netdev->mtu = new_mtu;
+	if (netif_running(netdev)) {
+		atl1_down(adapter);
+		atl1_up(adapter);
+	}
+
+	return 0;
+}
+
+/**
+ * atl1_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).  At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ */
+static int atl1_open(struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	int err;
+
+	netif_carrier_off(netdev);
+
+	/* allocate transmit descriptors */
+	err = atl1_setup_ring_resources(adapter);
+	if (err)
+		return err;
+
+	err = atl1_up(adapter);
+	if (err)
+		goto err_up;
+
+	return 0;
+
+err_up:
+	atl1_reset(adapter);
+	return err;
+}
+
+/**
+ * atl1_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ */
+static int atl1_close(struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	atl1_down(adapter);
+	atl1_free_ring_resources(adapter);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int atl1_suspend(struct device *dev)
+{
+	struct net_device *netdev = dev_get_drvdata(dev);
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+	u32 ctrl = 0;
+	u32 wufc = adapter->wol;
+	u32 val;
+	u16 speed;
+	u16 duplex;
+
+	netif_device_detach(netdev);
+	if (netif_running(netdev))
+		atl1_down(adapter);
+
+	atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
+	atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
+	val = ctrl & BMSR_LSTATUS;
+	if (val)
+		wufc &= ~ATLX_WUFC_LNKC;
+	if (!wufc)
+		goto disable_wol;
+
+	if (val) {
+		val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
+		if (val) {
+			if (netif_msg_ifdown(adapter))
+				dev_printk(KERN_DEBUG, dev,
+					"error getting speed/duplex\n");
+			goto disable_wol;
+		}
+
+		ctrl = 0;
+
+		/* enable magic packet WOL */
+		if (wufc & ATLX_WUFC_MAG)
+			ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN);
+		iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
+		ioread32(hw->hw_addr + REG_WOL_CTRL);
+
+		/* configure the mac */
+		ctrl = MAC_CTRL_RX_EN;
+		ctrl |= ((u32)((speed == SPEED_1000) ? MAC_CTRL_SPEED_1000 :
+			MAC_CTRL_SPEED_10_100) << MAC_CTRL_SPEED_SHIFT);
+		if (duplex == FULL_DUPLEX)
+			ctrl |= MAC_CTRL_DUPLX;
+		ctrl |= (((u32)adapter->hw.preamble_len &
+			MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
+		__atlx_vlan_mode(netdev->features, &ctrl);
+		if (wufc & ATLX_WUFC_MAG)
+			ctrl |= MAC_CTRL_BC_EN;
+		iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
+		ioread32(hw->hw_addr + REG_MAC_CTRL);
+
+		/* poke the PHY */
+		ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
+		ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
+		iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
+		ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
+	} else {
+		ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
+		iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
+		ioread32(hw->hw_addr + REG_WOL_CTRL);
+		iowrite32(0, hw->hw_addr + REG_MAC_CTRL);
+		ioread32(hw->hw_addr + REG_MAC_CTRL);
+		hw->phy_configured = false;
+	}
+
+	return 0;
+
+ disable_wol:
+	iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
+	ioread32(hw->hw_addr + REG_WOL_CTRL);
+	ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
+	ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
+	iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
+	ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
+	hw->phy_configured = false;
+
+	return 0;
+}
+
+static int atl1_resume(struct device *dev)
+{
+	struct net_device *netdev = dev_get_drvdata(dev);
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
+
+	atl1_reset_hw(&adapter->hw);
+
+	if (netif_running(netdev)) {
+		adapter->cmb.cmb->int_stats = 0;
+		atl1_up(adapter);
+	}
+	netif_device_attach(netdev);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(atl1_pm_ops, atl1_suspend, atl1_resume);
+
+static void atl1_shutdown(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+#ifdef CONFIG_PM_SLEEP
+	atl1_suspend(&pdev->dev);
+#endif
+	pci_wake_from_d3(pdev, adapter->wol);
+	pci_set_power_state(pdev, PCI_D3hot);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void atl1_poll_controller(struct net_device *netdev)
+{
+	disable_irq(netdev->irq);
+	atl1_intr(netdev->irq, netdev);
+	enable_irq(netdev->irq);
+}
+#endif
+
+static const struct net_device_ops atl1_netdev_ops = {
+	.ndo_open		= atl1_open,
+	.ndo_stop		= atl1_close,
+	.ndo_start_xmit		= atl1_xmit_frame,
+	.ndo_set_rx_mode	= atlx_set_multi,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= atl1_set_mac,
+	.ndo_change_mtu		= atl1_change_mtu,
+	.ndo_fix_features	= atlx_fix_features,
+	.ndo_set_features	= atlx_set_features,
+	.ndo_eth_ioctl		= atlx_ioctl,
+	.ndo_tx_timeout		= atlx_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= atl1_poll_controller,
+#endif
+};
+
+/**
+ * atl1_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in atl1_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * atl1_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ */
+static int atl1_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct net_device *netdev;
+	struct atl1_adapter *adapter;
+	static int cards_found = 0;
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	/*
+	 * The atl1 chip can DMA to 64-bit addresses, but it uses a single
+	 * shared register for the high 32 bits, so only a single, aligned,
+	 * 4 GB physical address range can be used at a time.
+	 *
+	 * Supporting 64-bit DMA on this hardware is more trouble than it's
+	 * worth.  It is far easier to limit to 32-bit DMA than update
+	 * various kernel subsystems to support the mechanics required by a
+	 * fixed-high-32-bit system.
+	 */
+	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (err) {
+		dev_err(&pdev->dev, "no usable DMA configuration\n");
+		goto err_dma;
+	}
+	/*
+	 * Mark all PCI regions associated with PCI device
+	 * pdev as being reserved by owner atl1_driver_name
+	 */
+	err = pci_request_regions(pdev, ATLX_DRIVER_NAME);
+	if (err)
+		goto err_request_regions;
+
+	/*
+	 * Enables bus-mastering on the device and calls
+	 * pcibios_set_master to do the needed arch specific settings
+	 */
+	pci_set_master(pdev);
+
+	netdev = alloc_etherdev(sizeof(struct atl1_adapter));
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_alloc_etherdev;
+	}
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	pci_set_drvdata(pdev, netdev);
+	adapter = netdev_priv(netdev);
+	adapter->netdev = netdev;
+	adapter->pdev = pdev;
+	adapter->hw.back = adapter;
+	adapter->msg_enable = netif_msg_init(debug, atl1_default_msg);
+
+	adapter->hw.hw_addr = pci_iomap(pdev, 0, 0);
+	if (!adapter->hw.hw_addr) {
+		err = -EIO;
+		goto err_pci_iomap;
+	}
+	/* get device revision number */
+	adapter->hw.dev_rev = ioread16(adapter->hw.hw_addr +
+		(REG_MASTER_CTRL + 2));
+
+	/* set default ring resource counts */
+	adapter->rfd_ring.count = adapter->rrd_ring.count = ATL1_DEFAULT_RFD;
+	adapter->tpd_ring.count = ATL1_DEFAULT_TPD;
+
+	adapter->mii.dev = netdev;
+	adapter->mii.mdio_read = mdio_read;
+	adapter->mii.mdio_write = mdio_write;
+	adapter->mii.phy_id_mask = 0x1f;
+	adapter->mii.reg_num_mask = 0x1f;
+
+	netdev->netdev_ops = &atl1_netdev_ops;
+	netdev->watchdog_timeo = 5 * HZ;
+	netif_napi_add(netdev, &adapter->napi, atl1_rings_clean);
+
+	netdev->ethtool_ops = &atl1_ethtool_ops;
+	adapter->bd_number = cards_found;
+
+	/* setup the private structure */
+	err = atl1_sw_init(adapter);
+	if (err)
+		goto err_common;
+
+	netdev->features = NETIF_F_HW_CSUM;
+	netdev->features |= NETIF_F_SG;
+	netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
+
+	netdev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_TSO |
+			      NETIF_F_HW_VLAN_CTAG_RX;
+
+	/* is this valid? see atl1_setup_mac_ctrl() */
+	netdev->features |= NETIF_F_RXCSUM;
+
+	/* MTU range: 42 - 10218 */
+	netdev->min_mtu = ETH_ZLEN - (ETH_HLEN + VLAN_HLEN);
+	netdev->max_mtu = MAX_JUMBO_FRAME_SIZE -
+			  (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+
+	/*
+	 * patch for some L1 of old version,
+	 * the final version of L1 may not need these
+	 * patches
+	 */
+	/* atl1_pcie_patch(adapter); */
+
+	/* really reset GPHY core */
+	iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE);
+
+	/*
+	 * reset the controller to
+	 * put the device in a known good starting state
+	 */
+	if (atl1_reset_hw(&adapter->hw)) {
+		err = -EIO;
+		goto err_common;
+	}
+
+	/* copy the MAC address out of the EEPROM */
+	if (atl1_read_mac_addr(&adapter->hw)) {
+		/* mark random mac */
+		netdev->addr_assign_type = NET_ADDR_RANDOM;
+	}
+	eth_hw_addr_set(netdev, adapter->hw.mac_addr);
+
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		err = -EIO;
+		goto err_common;
+	}
+
+	atl1_check_options(adapter);
+
+	/* pre-init the MAC, and setup link */
+	err = atl1_init_hw(&adapter->hw);
+	if (err) {
+		err = -EIO;
+		goto err_common;
+	}
+
+	atl1_pcie_patch(adapter);
+	/* assume we have no link for now */
+	netif_carrier_off(netdev);
+
+	timer_setup(&adapter->phy_config_timer, atl1_phy_config, 0);
+	adapter->phy_timer_pending = false;
+
+	INIT_WORK(&adapter->reset_dev_task, atl1_reset_dev_task);
+
+	INIT_WORK(&adapter->link_chg_task, atlx_link_chg_task);
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_common;
+
+	cards_found++;
+	atl1_via_workaround(adapter);
+	return 0;
+
+err_common:
+	pci_iounmap(pdev, adapter->hw.hw_addr);
+err_pci_iomap:
+	free_netdev(netdev);
+err_alloc_etherdev:
+	pci_release_regions(pdev);
+err_dma:
+err_request_regions:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * atl1_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * atl1_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ */
+static void atl1_remove(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct atl1_adapter *adapter;
+	/* Device not available. Return. */
+	if (!netdev)
+		return;
+
+	adapter = netdev_priv(netdev);
+
+	/*
+	 * Some atl1 boards lack persistent storage for their MAC, and get it
+	 * from the BIOS during POST.  If we've been messing with the MAC
+	 * address, we need to save the permanent one.
+	 */
+	if (!ether_addr_equal_unaligned(adapter->hw.mac_addr,
+					adapter->hw.perm_mac_addr)) {
+		memcpy(adapter->hw.mac_addr, adapter->hw.perm_mac_addr,
+			ETH_ALEN);
+		atl1_set_mac_addr(&adapter->hw);
+	}
+
+	iowrite16(0, adapter->hw.hw_addr + REG_PHY_ENABLE);
+	unregister_netdev(netdev);
+	pci_iounmap(pdev, adapter->hw.hw_addr);
+	pci_release_regions(pdev);
+	free_netdev(netdev);
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver atl1_driver = {
+	.name = ATLX_DRIVER_NAME,
+	.id_table = atl1_pci_tbl,
+	.probe = atl1_probe,
+	.remove = atl1_remove,
+	.shutdown = atl1_shutdown,
+	.driver.pm = &atl1_pm_ops,
+};
+
+struct atl1_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	int sizeof_stat;
+	int stat_offset;
+};
+
+#define ATL1_STAT(m) \
+	sizeof(((struct atl1_adapter *)0)->m), offsetof(struct atl1_adapter, m)
+
+static struct atl1_stats atl1_gstrings_stats[] = {
+	{"rx_packets", ATL1_STAT(soft_stats.rx_packets)},
+	{"tx_packets", ATL1_STAT(soft_stats.tx_packets)},
+	{"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)},
+	{"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)},
+	{"rx_errors", ATL1_STAT(soft_stats.rx_errors)},
+	{"tx_errors", ATL1_STAT(soft_stats.tx_errors)},
+	{"multicast", ATL1_STAT(soft_stats.multicast)},
+	{"collisions", ATL1_STAT(soft_stats.collisions)},
+	{"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)},
+	{"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
+	{"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)},
+	{"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)},
+	{"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)},
+	{"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
+	{"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)},
+	{"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)},
+	{"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)},
+	{"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)},
+	{"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)},
+	{"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)},
+	{"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)},
+	{"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)},
+	{"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)},
+	{"tx_underrun", ATL1_STAT(soft_stats.tx_underrun)},
+	{"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)},
+	{"tx_pause", ATL1_STAT(soft_stats.tx_pause)},
+	{"rx_pause", ATL1_STAT(soft_stats.rx_pause)},
+	{"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)},
+	{"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)}
+};
+
+static void atl1_get_ethtool_stats(struct net_device *netdev,
+	struct ethtool_stats *stats, u64 *data)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	int i;
+	char *p;
+
+	for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
+		p = (char *)adapter+atl1_gstrings_stats[i].stat_offset;
+		data[i] = (atl1_gstrings_stats[i].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+
+}
+
+static int atl1_get_sset_count(struct net_device *netdev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(atl1_gstrings_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int atl1_get_link_ksettings(struct net_device *netdev,
+				   struct ethtool_link_ksettings *cmd)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+	u32 supported, advertising;
+
+	supported = (SUPPORTED_10baseT_Half |
+			   SUPPORTED_10baseT_Full |
+			   SUPPORTED_100baseT_Half |
+			   SUPPORTED_100baseT_Full |
+			   SUPPORTED_1000baseT_Full |
+			   SUPPORTED_Autoneg | SUPPORTED_TP);
+	advertising = ADVERTISED_TP;
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		advertising |= ADVERTISED_Autoneg;
+		if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) {
+			advertising |= ADVERTISED_Autoneg;
+			advertising |=
+			    (ADVERTISED_10baseT_Half |
+			     ADVERTISED_10baseT_Full |
+			     ADVERTISED_100baseT_Half |
+			     ADVERTISED_100baseT_Full |
+			     ADVERTISED_1000baseT_Full);
+		} else
+			advertising |= (ADVERTISED_1000baseT_Full);
+	}
+	cmd->base.port = PORT_TP;
+	cmd->base.phy_address = 0;
+
+	if (netif_carrier_ok(adapter->netdev)) {
+		u16 link_speed, link_duplex;
+		atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex);
+		cmd->base.speed = link_speed;
+		if (link_duplex == FULL_DUPLEX)
+			cmd->base.duplex = DUPLEX_FULL;
+		else
+			cmd->base.duplex = DUPLEX_HALF;
+	} else {
+		cmd->base.speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
+	}
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		cmd->base.autoneg = AUTONEG_ENABLE;
+	else
+		cmd->base.autoneg = AUTONEG_DISABLE;
+
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						supported);
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+						advertising);
+
+	return 0;
+}
+
+static int atl1_set_link_ksettings(struct net_device *netdev,
+				   const struct ethtool_link_ksettings *cmd)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+	u16 phy_data;
+	int ret_val = 0;
+	u16 old_media_type = hw->media_type;
+
+	if (netif_running(adapter->netdev)) {
+		if (netif_msg_link(adapter))
+			dev_dbg(&adapter->pdev->dev,
+				"ethtool shutting down adapter\n");
+		atl1_down(adapter);
+	}
+
+	if (cmd->base.autoneg == AUTONEG_ENABLE)
+		hw->media_type = MEDIA_TYPE_AUTO_SENSOR;
+	else {
+		u32 speed = cmd->base.speed;
+		if (speed == SPEED_1000) {
+			if (cmd->base.duplex != DUPLEX_FULL) {
+				if (netif_msg_link(adapter))
+					dev_warn(&adapter->pdev->dev,
+						"1000M half is invalid\n");
+				ret_val = -EINVAL;
+				goto exit_sset;
+			}
+			hw->media_type = MEDIA_TYPE_1000M_FULL;
+		} else if (speed == SPEED_100) {
+			if (cmd->base.duplex == DUPLEX_FULL)
+				hw->media_type = MEDIA_TYPE_100M_FULL;
+			else
+				hw->media_type = MEDIA_TYPE_100M_HALF;
+		} else {
+			if (cmd->base.duplex == DUPLEX_FULL)
+				hw->media_type = MEDIA_TYPE_10M_FULL;
+			else
+				hw->media_type = MEDIA_TYPE_10M_HALF;
+		}
+	}
+
+	if (atl1_phy_setup_autoneg_adv(hw)) {
+		ret_val = -EINVAL;
+		if (netif_msg_link(adapter))
+			dev_warn(&adapter->pdev->dev,
+				"invalid ethtool speed/duplex setting\n");
+		goto exit_sset;
+	}
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+	else {
+		switch (hw->media_type) {
+		case MEDIA_TYPE_100M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+			    MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_100M_HALF:
+			phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_10M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		default:
+			/* MEDIA_TYPE_10M_HALF: */
+			phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		}
+	}
+	atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+exit_sset:
+	if (ret_val)
+		hw->media_type = old_media_type;
+
+	if (netif_running(adapter->netdev)) {
+		if (netif_msg_link(adapter))
+			dev_dbg(&adapter->pdev->dev,
+				"ethtool starting adapter\n");
+		atl1_up(adapter);
+	} else if (!ret_val) {
+		if (netif_msg_link(adapter))
+			dev_dbg(&adapter->pdev->dev,
+				"ethtool resetting adapter\n");
+		atl1_reset(adapter);
+	}
+	return ret_val;
+}
+
+static void atl1_get_drvinfo(struct net_device *netdev,
+	struct ethtool_drvinfo *drvinfo)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	strscpy(drvinfo->driver, ATLX_DRIVER_NAME, sizeof(drvinfo->driver));
+	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
+		sizeof(drvinfo->bus_info));
+}
+
+static void atl1_get_wol(struct net_device *netdev,
+	struct ethtool_wolinfo *wol)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	wol->supported = WAKE_MAGIC;
+	wol->wolopts = 0;
+	if (adapter->wol & ATLX_WUFC_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+}
+
+static int atl1_set_wol(struct net_device *netdev,
+	struct ethtool_wolinfo *wol)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_PHY | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
+		WAKE_ARP | WAKE_MAGICSECURE))
+		return -EOPNOTSUPP;
+	adapter->wol = 0;
+	if (wol->wolopts & WAKE_MAGIC)
+		adapter->wol |= ATLX_WUFC_MAG;
+
+	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+	return 0;
+}
+
+static u32 atl1_get_msglevel(struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	return adapter->msg_enable;
+}
+
+static void atl1_set_msglevel(struct net_device *netdev, u32 value)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	adapter->msg_enable = value;
+}
+
+static int atl1_get_regs_len(struct net_device *netdev)
+{
+	return ATL1_REG_COUNT * sizeof(u32);
+}
+
+static void atl1_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
+	void *p)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+	unsigned int i;
+	u32 *regbuf = p;
+
+	for (i = 0; i < ATL1_REG_COUNT; i++) {
+		/*
+		 * This switch statement avoids reserved regions
+		 * of register space.
+		 */
+		switch (i) {
+		case 6 ... 9:
+		case 14:
+		case 29 ... 31:
+		case 34 ... 63:
+		case 75 ... 127:
+		case 136 ... 1023:
+		case 1027 ... 1087:
+		case 1091 ... 1151:
+		case 1194 ... 1195:
+		case 1200 ... 1201:
+		case 1206 ... 1213:
+		case 1216 ... 1279:
+		case 1290 ... 1311:
+		case 1323 ... 1343:
+		case 1358 ... 1359:
+		case 1368 ... 1375:
+		case 1378 ... 1383:
+		case 1388 ... 1391:
+		case 1393 ... 1395:
+		case 1402 ... 1403:
+		case 1410 ... 1471:
+		case 1522 ... 1535:
+			/* reserved region; don't read it */
+			regbuf[i] = 0;
+			break;
+		default:
+			/* unreserved region */
+			regbuf[i] = ioread32(hw->hw_addr + (i * sizeof(u32)));
+		}
+	}
+}
+
+static void atl1_get_ringparam(struct net_device *netdev,
+			       struct ethtool_ringparam *ring,
+			       struct kernel_ethtool_ringparam *kernel_ring,
+			       struct netlink_ext_ack *extack)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_tpd_ring *txdr = &adapter->tpd_ring;
+	struct atl1_rfd_ring *rxdr = &adapter->rfd_ring;
+
+	ring->rx_max_pending = ATL1_MAX_RFD;
+	ring->tx_max_pending = ATL1_MAX_TPD;
+	ring->rx_pending = rxdr->count;
+	ring->tx_pending = txdr->count;
+}
+
+static int atl1_set_ringparam(struct net_device *netdev,
+			      struct ethtool_ringparam *ring,
+			      struct kernel_ethtool_ringparam *kernel_ring,
+			      struct netlink_ext_ack *extack)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_tpd_ring *tpdr = &adapter->tpd_ring;
+	struct atl1_rrd_ring *rrdr = &adapter->rrd_ring;
+	struct atl1_rfd_ring *rfdr = &adapter->rfd_ring;
+
+	struct atl1_tpd_ring tpd_old, tpd_new;
+	struct atl1_rfd_ring rfd_old, rfd_new;
+	struct atl1_rrd_ring rrd_old, rrd_new;
+	struct atl1_ring_header rhdr_old, rhdr_new;
+	struct atl1_smb smb;
+	struct atl1_cmb cmb;
+	int err;
+
+	tpd_old = adapter->tpd_ring;
+	rfd_old = adapter->rfd_ring;
+	rrd_old = adapter->rrd_ring;
+	rhdr_old = adapter->ring_header;
+
+	if (netif_running(adapter->netdev))
+		atl1_down(adapter);
+
+	rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD);
+	rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD :
+			rfdr->count;
+	rfdr->count = (rfdr->count + 3) & ~3;
+	rrdr->count = rfdr->count;
+
+	tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD);
+	tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD :
+			tpdr->count;
+	tpdr->count = (tpdr->count + 3) & ~3;
+
+	if (netif_running(adapter->netdev)) {
+		/* try to get new resources before deleting old */
+		err = atl1_setup_ring_resources(adapter);
+		if (err)
+			goto err_setup_ring;
+
+		/*
+		 * save the new, restore the old in order to free it,
+		 * then restore the new back again
+		 */
+
+		rfd_new = adapter->rfd_ring;
+		rrd_new = adapter->rrd_ring;
+		tpd_new = adapter->tpd_ring;
+		rhdr_new = adapter->ring_header;
+		adapter->rfd_ring = rfd_old;
+		adapter->rrd_ring = rrd_old;
+		adapter->tpd_ring = tpd_old;
+		adapter->ring_header = rhdr_old;
+		/*
+		 * Save SMB and CMB, since atl1_free_ring_resources
+		 * will clear them.
+		 */
+		smb = adapter->smb;
+		cmb = adapter->cmb;
+		atl1_free_ring_resources(adapter);
+		adapter->rfd_ring = rfd_new;
+		adapter->rrd_ring = rrd_new;
+		adapter->tpd_ring = tpd_new;
+		adapter->ring_header = rhdr_new;
+		adapter->smb = smb;
+		adapter->cmb = cmb;
+
+		err = atl1_up(adapter);
+		if (err)
+			return err;
+	}
+	return 0;
+
+err_setup_ring:
+	adapter->rfd_ring = rfd_old;
+	adapter->rrd_ring = rrd_old;
+	adapter->tpd_ring = tpd_old;
+	adapter->ring_header = rhdr_old;
+	atl1_up(adapter);
+	return err;
+}
+
+static void atl1_get_pauseparam(struct net_device *netdev,
+	struct ethtool_pauseparam *epause)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		epause->autoneg = AUTONEG_ENABLE;
+	} else {
+		epause->autoneg = AUTONEG_DISABLE;
+	}
+	epause->rx_pause = 1;
+	epause->tx_pause = 1;
+}
+
+static int atl1_set_pauseparam(struct net_device *netdev,
+	struct ethtool_pauseparam *epause)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		epause->autoneg = AUTONEG_ENABLE;
+	} else {
+		epause->autoneg = AUTONEG_DISABLE;
+	}
+
+	epause->rx_pause = 1;
+	epause->tx_pause = 1;
+
+	return 0;
+}
+
+static void atl1_get_strings(struct net_device *netdev, u32 stringset,
+	u8 *data)
+{
+	u8 *p = data;
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
+			memcpy(p, atl1_gstrings_stats[i].stat_string,
+				ETH_GSTRING_LEN);
+			p += ETH_GSTRING_LEN;
+		}
+		break;
+	}
+}
+
+static int atl1_nway_reset(struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (netif_running(netdev)) {
+		u16 phy_data;
+		atl1_down(adapter);
+
+		if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+			hw->media_type == MEDIA_TYPE_1000M_FULL) {
+			phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+		} else {
+			switch (hw->media_type) {
+			case MEDIA_TYPE_100M_FULL:
+				phy_data = MII_CR_FULL_DUPLEX |
+					MII_CR_SPEED_100 | MII_CR_RESET;
+				break;
+			case MEDIA_TYPE_100M_HALF:
+				phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+				break;
+			case MEDIA_TYPE_10M_FULL:
+				phy_data = MII_CR_FULL_DUPLEX |
+					MII_CR_SPEED_10 | MII_CR_RESET;
+				break;
+			default:
+				/* MEDIA_TYPE_10M_HALF */
+				phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			}
+		}
+		atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+		atl1_up(adapter);
+	}
+	return 0;
+}
+
+static const struct ethtool_ops atl1_ethtool_ops = {
+	.get_drvinfo		= atl1_get_drvinfo,
+	.get_wol		= atl1_get_wol,
+	.set_wol		= atl1_set_wol,
+	.get_msglevel		= atl1_get_msglevel,
+	.set_msglevel		= atl1_set_msglevel,
+	.get_regs_len		= atl1_get_regs_len,
+	.get_regs		= atl1_get_regs,
+	.get_ringparam		= atl1_get_ringparam,
+	.set_ringparam		= atl1_set_ringparam,
+	.get_pauseparam		= atl1_get_pauseparam,
+	.set_pauseparam		= atl1_set_pauseparam,
+	.get_link		= ethtool_op_get_link,
+	.get_strings		= atl1_get_strings,
+	.nway_reset		= atl1_nway_reset,
+	.get_ethtool_stats	= atl1_get_ethtool_stats,
+	.get_sset_count		= atl1_get_sset_count,
+	.get_link_ksettings	= atl1_get_link_ksettings,
+	.set_link_ksettings	= atl1_set_link_ksettings,
+};
+
+module_pci_driver(atl1_driver);
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.h b/drivers/net/ethernet/atheros/atlx/atl1.h
new file mode 100644
index 0000000000..6b264c5127
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atl1.h
@@ -0,0 +1,790 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ */
+
+#ifndef ATL1_H
+#define ATL1_H
+
+#include <linux/compiler.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "atlx.h"
+
+#define ATLX_DRIVER_NAME "atl1"
+
+MODULE_DESCRIPTION("Atheros L1 Gigabit Ethernet Driver");
+
+#define atlx_adapter		atl1_adapter
+#define atlx_check_for_link	atl1_check_for_link
+#define atlx_check_link		atl1_check_link
+#define atlx_hash_mc_addr	atl1_hash_mc_addr
+#define atlx_hash_set		atl1_hash_set
+#define atlx_hw			atl1_hw
+#define atlx_mii_ioctl		atl1_mii_ioctl
+#define atlx_read_phy_reg	atl1_read_phy_reg
+#define atlx_set_mac		atl1_set_mac
+#define atlx_set_mac_addr	atl1_set_mac_addr
+
+struct atl1_adapter;
+struct atl1_hw;
+
+/* function prototypes needed by multiple files */
+static u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr);
+static void atl1_hash_set(struct atl1_hw *hw, u32 hash_value);
+static void atl1_set_mac_addr(struct atl1_hw *hw);
+static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
+	int cmd);
+static u32 atl1_check_link(struct atl1_adapter *adapter);
+
+/* hardware definitions specific to L1 */
+
+/* Block IDLE Status Register */
+#define IDLE_STATUS_RXMAC			0x1
+#define IDLE_STATUS_TXMAC			0x2
+#define IDLE_STATUS_RXQ				0x4
+#define IDLE_STATUS_TXQ				0x8
+#define IDLE_STATUS_DMAR			0x10
+#define IDLE_STATUS_DMAW			0x20
+#define IDLE_STATUS_SMB				0x40
+#define IDLE_STATUS_CMB				0x80
+
+/* MDIO Control Register */
+#define MDIO_WAIT_TIMES				30
+
+/* MAC Control Register */
+#define MAC_CTRL_TX_PAUSE			0x10000
+#define MAC_CTRL_SCNT				0x20000
+#define MAC_CTRL_SRST_TX			0x40000
+#define MAC_CTRL_TX_SIMURST			0x80000
+#define MAC_CTRL_SPEED_SHIFT			20
+#define MAC_CTRL_SPEED_MASK			0x300000
+#define MAC_CTRL_SPEED_1000			0x2
+#define MAC_CTRL_SPEED_10_100			0x1
+#define MAC_CTRL_DBG_TX_BKPRESURE		0x400000
+#define MAC_CTRL_TX_HUGE			0x800000
+#define MAC_CTRL_RX_CHKSUM_EN			0x1000000
+#define MAC_CTRL_DBG				0x8000000
+
+/* Wake-On-Lan control register */
+#define WOL_CLK_SWITCH_EN			0x8000
+#define WOL_PT5_EN				0x200000
+#define WOL_PT6_EN				0x400000
+#define WOL_PT5_MATCH				0x8000000
+#define WOL_PT6_MATCH				0x10000000
+
+/* WOL Length ( 2 DWORD ) */
+#define REG_WOL_PATTERN_LEN			0x14A4
+#define WOL_PT_LEN_MASK				0x7F
+#define WOL_PT0_LEN_SHIFT			0
+#define WOL_PT1_LEN_SHIFT			8
+#define WOL_PT2_LEN_SHIFT			16
+#define WOL_PT3_LEN_SHIFT			24
+#define WOL_PT4_LEN_SHIFT			0
+#define WOL_PT5_LEN_SHIFT			8
+#define WOL_PT6_LEN_SHIFT			16
+
+/* Internal SRAM Partition Registers, low 32 bits */
+#define REG_SRAM_RFD_LEN			0x1504
+#define REG_SRAM_RRD_ADDR			0x1508
+#define REG_SRAM_RRD_LEN			0x150C
+#define REG_SRAM_TPD_ADDR			0x1510
+#define REG_SRAM_TPD_LEN			0x1514
+#define REG_SRAM_TRD_ADDR			0x1518
+#define REG_SRAM_TRD_LEN			0x151C
+#define REG_SRAM_RXF_ADDR			0x1520
+#define REG_SRAM_RXF_LEN			0x1524
+#define REG_SRAM_TXF_ADDR			0x1528
+#define REG_SRAM_TXF_LEN			0x152C
+#define REG_SRAM_TCPH_PATH_ADDR			0x1530
+#define SRAM_TCPH_ADDR_MASK			0xFFF
+#define SRAM_TCPH_ADDR_SHIFT			0
+#define SRAM_PATH_ADDR_MASK			0xFFF
+#define SRAM_PATH_ADDR_SHIFT			16
+
+/* Load Ptr Register */
+#define REG_LOAD_PTR				0x1534
+
+/* Descriptor Control registers, low 32 bits */
+#define REG_DESC_RFD_ADDR_LO			0x1544
+#define REG_DESC_RRD_ADDR_LO			0x1548
+#define REG_DESC_TPD_ADDR_LO			0x154C
+#define REG_DESC_CMB_ADDR_LO			0x1550
+#define REG_DESC_SMB_ADDR_LO			0x1554
+#define REG_DESC_RFD_RRD_RING_SIZE		0x1558
+#define DESC_RFD_RING_SIZE_MASK			0x7FF
+#define DESC_RFD_RING_SIZE_SHIFT		0
+#define DESC_RRD_RING_SIZE_MASK			0x7FF
+#define DESC_RRD_RING_SIZE_SHIFT		16
+#define REG_DESC_TPD_RING_SIZE			0x155C
+#define DESC_TPD_RING_SIZE_MASK			0x3FF
+#define DESC_TPD_RING_SIZE_SHIFT		0
+
+/* TXQ Control Register */
+#define REG_TXQ_CTRL				0x1580
+#define TXQ_CTRL_TPD_BURST_NUM_SHIFT		0
+#define TXQ_CTRL_TPD_BURST_NUM_MASK		0x1F
+#define TXQ_CTRL_EN				0x20
+#define TXQ_CTRL_ENH_MODE			0x40
+#define TXQ_CTRL_TPD_FETCH_TH_SHIFT		8
+#define TXQ_CTRL_TPD_FETCH_TH_MASK		0x3F
+#define TXQ_CTRL_TXF_BURST_NUM_SHIFT		16
+#define TXQ_CTRL_TXF_BURST_NUM_MASK		0xFFFF
+
+/* Jumbo packet Threshold for task offload */
+#define REG_TX_JUMBO_TASK_TH_TPD_IPG		0x1584
+#define TX_JUMBO_TASK_TH_MASK			0x7FF
+#define TX_JUMBO_TASK_TH_SHIFT			0
+#define TX_TPD_MIN_IPG_MASK			0x1F
+#define TX_TPD_MIN_IPG_SHIFT			16
+
+/* RXQ Control Register */
+#define REG_RXQ_CTRL				0x15A0
+#define RXQ_CTRL_RFD_BURST_NUM_SHIFT		0
+#define RXQ_CTRL_RFD_BURST_NUM_MASK		0xFF
+#define RXQ_CTRL_RRD_BURST_THRESH_SHIFT		8
+#define RXQ_CTRL_RRD_BURST_THRESH_MASK		0xFF
+#define RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT		16
+#define RXQ_CTRL_RFD_PREF_MIN_IPG_MASK		0x1F
+#define RXQ_CTRL_CUT_THRU_EN			0x40000000
+#define RXQ_CTRL_EN				0x80000000
+
+/* Rx jumbo packet threshold and rrd  retirement timer */
+#define REG_RXQ_JMBOSZ_RRDTIM			0x15A4
+#define RXQ_JMBOSZ_TH_MASK			0x7FF
+#define RXQ_JMBOSZ_TH_SHIFT			0
+#define RXQ_JMBO_LKAH_MASK			0xF
+#define RXQ_JMBO_LKAH_SHIFT			11
+#define RXQ_RRD_TIMER_MASK			0xFFFF
+#define RXQ_RRD_TIMER_SHIFT			16
+
+/* RFD flow control register */
+#define REG_RXQ_RXF_PAUSE_THRESH		0x15A8
+#define RXQ_RXF_PAUSE_TH_HI_SHIFT		16
+#define RXQ_RXF_PAUSE_TH_HI_MASK		0xFFF
+#define RXQ_RXF_PAUSE_TH_LO_SHIFT		0
+#define RXQ_RXF_PAUSE_TH_LO_MASK		0xFFF
+
+/* RRD flow control register */
+#define REG_RXQ_RRD_PAUSE_THRESH		0x15AC
+#define RXQ_RRD_PAUSE_TH_HI_SHIFT		0
+#define RXQ_RRD_PAUSE_TH_HI_MASK		0xFFF
+#define RXQ_RRD_PAUSE_TH_LO_SHIFT		16
+#define RXQ_RRD_PAUSE_TH_LO_MASK		0xFFF
+
+/* DMA Engine Control Register */
+#define REG_DMA_CTRL				0x15C0
+#define DMA_CTRL_DMAR_IN_ORDER			0x1
+#define DMA_CTRL_DMAR_ENH_ORDER			0x2
+#define DMA_CTRL_DMAR_OUT_ORDER			0x4
+#define DMA_CTRL_RCB_VALUE			0x8
+#define DMA_CTRL_DMAR_BURST_LEN_SHIFT		4
+#define DMA_CTRL_DMAR_BURST_LEN_MASK		7
+#define DMA_CTRL_DMAW_BURST_LEN_SHIFT		7
+#define DMA_CTRL_DMAW_BURST_LEN_MASK		7
+#define DMA_CTRL_DMAR_EN			0x400
+#define DMA_CTRL_DMAW_EN			0x800
+
+/* CMB/SMB Control Register */
+#define REG_CSMB_CTRL				0x15D0
+#define CSMB_CTRL_CMB_NOW			1
+#define CSMB_CTRL_SMB_NOW			2
+#define CSMB_CTRL_CMB_EN			4
+#define CSMB_CTRL_SMB_EN			8
+
+/* CMB DMA Write Threshold Register */
+#define REG_CMB_WRITE_TH			0x15D4
+#define CMB_RRD_TH_SHIFT			0
+#define CMB_RRD_TH_MASK				0x7FF
+#define CMB_TPD_TH_SHIFT			16
+#define CMB_TPD_TH_MASK				0x7FF
+
+/* RX/TX count-down timer to trigger CMB-write. 2us resolution. */
+#define REG_CMB_WRITE_TIMER			0x15D8
+#define CMB_RX_TM_SHIFT				0
+#define CMB_RX_TM_MASK				0xFFFF
+#define CMB_TX_TM_SHIFT				16
+#define CMB_TX_TM_MASK				0xFFFF
+
+/* Number of packet received since last CMB write */
+#define REG_CMB_RX_PKT_CNT			0x15DC
+
+/* Number of packet transmitted since last CMB write */
+#define REG_CMB_TX_PKT_CNT			0x15E0
+
+/* SMB auto DMA timer register */
+#define REG_SMB_TIMER				0x15E4
+
+/* Mailbox Register */
+#define REG_MAILBOX				0x15F0
+#define MB_RFD_PROD_INDX_SHIFT			0
+#define MB_RFD_PROD_INDX_MASK			0x7FF
+#define MB_RRD_CONS_INDX_SHIFT			11
+#define MB_RRD_CONS_INDX_MASK			0x7FF
+#define MB_TPD_PROD_INDX_SHIFT			22
+#define MB_TPD_PROD_INDX_MASK			0x3FF
+
+/* Interrupt Status Register */
+#define ISR_SMB					0x1
+#define ISR_TIMER				0x2
+#define ISR_MANUAL				0x4
+#define ISR_RXF_OV				0x8
+#define ISR_RFD_UNRUN				0x10
+#define ISR_RRD_OV				0x20
+#define ISR_TXF_UNRUN				0x40
+#define ISR_LINK				0x80
+#define ISR_HOST_RFD_UNRUN			0x100
+#define ISR_HOST_RRD_OV				0x200
+#define ISR_DMAR_TO_RST				0x400
+#define ISR_DMAW_TO_RST				0x800
+#define ISR_GPHY				0x1000
+#define ISR_RX_PKT				0x10000
+#define ISR_TX_PKT				0x20000
+#define ISR_TX_DMA				0x40000
+#define ISR_RX_DMA				0x80000
+#define ISR_CMB_RX				0x100000
+#define ISR_CMB_TX				0x200000
+#define ISR_MAC_RX				0x400000
+#define ISR_MAC_TX				0x800000
+#define ISR_DIS_SMB				0x20000000
+#define ISR_DIS_DMA				0x40000000
+
+/* Normal Interrupt mask without RX/TX enabled */
+#define IMR_NORXTX_MASK	(\
+	ISR_SMB		|\
+	ISR_GPHY	|\
+	ISR_PHY_LINKDOWN|\
+	ISR_DMAR_TO_RST	|\
+	ISR_DMAW_TO_RST)
+
+/* Normal Interrupt mask  */
+#define IMR_NORMAL_MASK	(\
+	IMR_NORXTX_MASK	|\
+	ISR_CMB_TX	|\
+	ISR_CMB_RX)
+
+/* Debug Interrupt Mask  (enable all interrupt) */
+#define IMR_DEBUG_MASK	(\
+	ISR_SMB		|\
+	ISR_TIMER	|\
+	ISR_MANUAL	|\
+	ISR_RXF_OV	|\
+	ISR_RFD_UNRUN	|\
+	ISR_RRD_OV	|\
+	ISR_TXF_UNRUN	|\
+	ISR_LINK	|\
+	ISR_CMB_TX	|\
+	ISR_CMB_RX	|\
+	ISR_RX_PKT	|\
+	ISR_TX_PKT	|\
+	ISR_MAC_RX	|\
+	ISR_MAC_TX)
+
+#define MEDIA_TYPE_1000M_FULL			1
+#define MEDIA_TYPE_100M_FULL			2
+#define MEDIA_TYPE_100M_HALF			3
+#define MEDIA_TYPE_10M_FULL			4
+#define MEDIA_TYPE_10M_HALF			5
+
+#define AUTONEG_ADVERTISE_SPEED_DEFAULT		0x002F	/* All but 1000-Half */
+
+#define MAX_JUMBO_FRAME_SIZE			10240
+
+#define ATL1_EEDUMP_LEN				48
+
+/* Statistics counters collected by the MAC */
+struct stats_msg_block {
+	/* rx */
+	u32 rx_ok;		/* good RX packets */
+	u32 rx_bcast;		/* good RX broadcast packets */
+	u32 rx_mcast;		/* good RX multicast packets */
+	u32 rx_pause;		/* RX pause frames */
+	u32 rx_ctrl;		/* RX control packets other than pause frames */
+	u32 rx_fcs_err;		/* RX packets with bad FCS */
+	u32 rx_len_err;		/* RX packets with length != actual size */
+	u32 rx_byte_cnt;	/* good bytes received. FCS is NOT included */
+	u32 rx_runt;		/* RX packets < 64 bytes with good FCS */
+	u32 rx_frag;		/* RX packets < 64 bytes with bad FCS */
+	u32 rx_sz_64;		/* 64 byte RX packets */
+	u32 rx_sz_65_127;
+	u32 rx_sz_128_255;
+	u32 rx_sz_256_511;
+	u32 rx_sz_512_1023;
+	u32 rx_sz_1024_1518;
+	u32 rx_sz_1519_max;	/* 1519 byte to MTU RX packets */
+	u32 rx_sz_ov;		/* truncated RX packets > MTU */
+	u32 rx_rxf_ov;		/* frames dropped due to RX FIFO overflow */
+	u32 rx_rrd_ov;		/* frames dropped due to RRD overflow */
+	u32 rx_align_err;	/* alignment errors */
+	u32 rx_bcast_byte_cnt;	/* RX broadcast bytes, excluding FCS */
+	u32 rx_mcast_byte_cnt;	/* RX multicast bytes, excluding FCS */
+	u32 rx_err_addr;	/* packets dropped due to address filtering */
+
+	/* tx */
+	u32 tx_ok;		/* good TX packets */
+	u32 tx_bcast;		/* good TX broadcast packets */
+	u32 tx_mcast;		/* good TX multicast packets */
+	u32 tx_pause;		/* TX pause frames */
+	u32 tx_exc_defer;	/* TX packets deferred excessively */
+	u32 tx_ctrl;		/* TX control frames, excluding pause frames */
+	u32 tx_defer;		/* TX packets deferred */
+	u32 tx_byte_cnt;	/* bytes transmitted, FCS is NOT included */
+	u32 tx_sz_64;		/* 64 byte TX packets */
+	u32 tx_sz_65_127;
+	u32 tx_sz_128_255;
+	u32 tx_sz_256_511;
+	u32 tx_sz_512_1023;
+	u32 tx_sz_1024_1518;
+	u32 tx_sz_1519_max;	/* 1519 byte to MTU TX packets */
+	u32 tx_1_col;		/* packets TX after a single collision */
+	u32 tx_2_col;		/* packets TX after multiple collisions */
+	u32 tx_late_col;	/* TX packets with late collisions */
+	u32 tx_abort_col;	/* TX packets aborted w/excessive collisions */
+	u32 tx_underrun;	/* TX packets aborted due to TX FIFO underrun
+				 * or TRD FIFO underrun */
+	u32 tx_rd_eop;		/* reads beyond the EOP into the next frame
+				 * when TRD was not written timely */
+	u32 tx_len_err;		/* TX packets where length != actual size */
+	u32 tx_trunc;		/* TX packets truncated due to size > MTU */
+	u32 tx_bcast_byte;	/* broadcast bytes transmitted, excluding FCS */
+	u32 tx_mcast_byte;	/* multicast bytes transmitted, excluding FCS */
+	u32 smb_updated;	/* 1: SMB Updated. This is used by software to
+				 * indicate the statistics update. Software
+				 * should clear this bit after retrieving the
+				 * statistics information. */
+};
+
+/* Coalescing Message Block */
+struct coals_msg_block {
+	u32 int_stats;		/* interrupt status */
+	u16 rrd_prod_idx;	/* TRD Producer Index. */
+	u16 rfd_cons_idx;	/* RFD Consumer Index. */
+	u16 update;		/* Selene sets this bit every time it DMAs the
+				 * CMB to host memory. Software should clear
+				 * this bit when CMB info is processed. */
+	u16 tpd_cons_idx;	/* TPD Consumer Index. */
+};
+
+/* RRD descriptor */
+struct rx_return_desc {
+	u8 num_buf;	/* Number of RFD buffers used by the received packet */
+	u8 resved;
+	u16 buf_indx;	/* RFD Index of the first buffer */
+	union {
+		u32 valid;
+		struct {
+			u16 rx_chksum;
+			u16 pkt_size;
+		} xsum_sz;
+	} xsz;
+
+	u16 pkt_flg;	/* Packet flags */
+	u16 err_flg;	/* Error flags */
+	u16 resved2;
+	u16 vlan_tag;	/* VLAN TAG */
+};
+
+#define PACKET_FLAG_ETH_TYPE	0x0080
+#define PACKET_FLAG_VLAN_INS	0x0100
+#define PACKET_FLAG_ERR		0x0200
+#define PACKET_FLAG_IPV4	0x0400
+#define PACKET_FLAG_UDP		0x0800
+#define PACKET_FLAG_TCP		0x1000
+#define PACKET_FLAG_BCAST	0x2000
+#define PACKET_FLAG_MCAST	0x4000
+#define PACKET_FLAG_PAUSE	0x8000
+
+#define ERR_FLAG_CRC		0x0001
+#define ERR_FLAG_CODE		0x0002
+#define ERR_FLAG_DRIBBLE	0x0004
+#define ERR_FLAG_RUNT		0x0008
+#define ERR_FLAG_OV		0x0010
+#define ERR_FLAG_TRUNC		0x0020
+#define ERR_FLAG_IP_CHKSUM	0x0040
+#define ERR_FLAG_L4_CHKSUM	0x0080
+#define ERR_FLAG_LEN		0x0100
+#define ERR_FLAG_DES_ADDR	0x0200
+
+/* RFD descriptor */
+struct rx_free_desc {
+	__le64 buffer_addr;	/* Address of the descriptor's data buffer */
+	__le16 buf_len;		/* Size of the receive buffer in host memory */
+	u16 coalese;		/* Update consumer index to host after the
+				 * reception of this frame */
+	/* __packed is required */
+} __packed;
+
+/*
+ * The L1 transmit packet descriptor is comprised of four 32-bit words.
+ *
+ *	31					0
+ *	+---------------------------------------+
+ *      |	Word 0: Buffer addr lo 		|
+ *      +---------------------------------------+
+ *      |	Word 1: Buffer addr hi		|
+ *      +---------------------------------------+
+ *      |		Word 2			|
+ *      +---------------------------------------+
+ *      |		Word 3			|
+ *      +---------------------------------------+
+ *
+ * Words 0 and 1 combine to form a 64-bit buffer address.
+ *
+ * Word 2 is self explanatory in the #define block below.
+ *
+ * Word 3 has two forms, depending upon the state of bits 3 and 4.
+ * If bits 3 and 4 are both zero, then bits 14:31 are unused by the
+ * hardware.  Otherwise, if either bit 3 or 4 is set, the definition
+ * of bits 14:31 vary according to the following depiction.
+ *
+ *	0	End of packet			0	End of packet
+ *	1	Coalesce			1	Coalesce
+ *	2	Insert VLAN tag			2	Insert VLAN tag
+ *	3	Custom csum enable = 0		3	Custom csum enable = 1
+ *	4	Segment enable = 1		4	Segment enable = 0
+ *	5	Generate IP checksum		5	Generate IP checksum
+ *	6	Generate TCP checksum		6	Generate TCP checksum
+ *	7	Generate UDP checksum		7	Generate UDP checksum
+ *	8	VLAN tagged			8	VLAN tagged
+ *	9	Ethernet frame type		9	Ethernet frame type
+ *	10-+ 					10-+
+ *	11 |	IP hdr length (10:13)		11 |	IP hdr length (10:13)
+ *	12 |	(num 32-bit words)		12 |	(num 32-bit words)
+ *	13-+					13-+
+ *	14-+					14	Unused
+ *	15 |	TCP hdr length (14:17)		15	Unused
+ *	16 |	(num 32-bit words)		16-+
+ *	17-+					17 |
+ *	18	Header TPD flag			18 |
+ *	19-+					19 |	Payload offset
+ *	20 |					20 |	    (16:23)
+ *	21 |					21 |
+ *	22 |					22 |
+ *	23 |					23-+
+ *	24 |					24-+
+ *	25 |	MSS (19:31)			25 |
+ *	26 |					26 |
+ *	27 |					27 |	Custom csum offset
+ *	28 |					28 |	     (24:31)
+ *	29 |					29 |
+ *	30 |					30 |
+ *	31-+					31-+
+ */
+
+/* tpd word 2 */
+#define TPD_BUFLEN_MASK		0x3FFF
+#define TPD_BUFLEN_SHIFT	0
+#define TPD_DMAINT_MASK		0x0001
+#define TPD_DMAINT_SHIFT	14
+#define TPD_PKTNT_MASK		0x0001
+#define TPD_PKTINT_SHIFT	15
+#define TPD_VLANTAG_MASK	0xFFFF
+#define TPD_VLANTAG_SHIFT	16
+
+/* tpd word 3 bits 0:13 */
+#define TPD_EOP_MASK		0x0001
+#define TPD_EOP_SHIFT		0
+#define TPD_COALESCE_MASK	0x0001
+#define TPD_COALESCE_SHIFT	1
+#define TPD_INS_VL_TAG_MASK	0x0001
+#define TPD_INS_VL_TAG_SHIFT	2
+#define TPD_CUST_CSUM_EN_MASK	0x0001
+#define TPD_CUST_CSUM_EN_SHIFT	3
+#define TPD_SEGMENT_EN_MASK	0x0001
+#define TPD_SEGMENT_EN_SHIFT	4
+#define TPD_IP_CSUM_MASK	0x0001
+#define TPD_IP_CSUM_SHIFT	5
+#define TPD_TCP_CSUM_MASK	0x0001
+#define TPD_TCP_CSUM_SHIFT	6
+#define TPD_UDP_CSUM_MASK	0x0001
+#define TPD_UDP_CSUM_SHIFT	7
+#define TPD_VL_TAGGED_MASK	0x0001
+#define TPD_VL_TAGGED_SHIFT	8
+#define TPD_ETHTYPE_MASK	0x0001
+#define TPD_ETHTYPE_SHIFT	9
+#define TPD_IPHL_MASK		0x000F
+#define TPD_IPHL_SHIFT		10
+
+/* tpd word 3 bits 14:31 if segment enabled */
+#define TPD_TCPHDRLEN_MASK	0x000F
+#define TPD_TCPHDRLEN_SHIFT	14
+#define TPD_HDRFLAG_MASK	0x0001
+#define TPD_HDRFLAG_SHIFT	18
+#define TPD_MSS_MASK		0x1FFF
+#define TPD_MSS_SHIFT		19
+
+/* tpd word 3 bits 16:31 if custom csum enabled */
+#define TPD_PLOADOFFSET_MASK	0x00FF
+#define TPD_PLOADOFFSET_SHIFT	16
+#define TPD_CCSUMOFFSET_MASK	0x00FF
+#define TPD_CCSUMOFFSET_SHIFT	24
+
+struct tx_packet_desc {
+	__le64 buffer_addr;
+	__le32 word2;
+	__le32 word3;
+};
+
+/* DMA Order Settings */
+enum atl1_dma_order {
+	atl1_dma_ord_in = 1,
+	atl1_dma_ord_enh = 2,
+	atl1_dma_ord_out = 4
+};
+
+enum atl1_dma_rcb {
+	atl1_rcb_64 = 0,
+	atl1_rcb_128 = 1
+};
+
+enum atl1_dma_req_block {
+	atl1_dma_req_128 = 0,
+	atl1_dma_req_256 = 1,
+	atl1_dma_req_512 = 2,
+	atl1_dma_req_1024 = 3,
+	atl1_dma_req_2048 = 4,
+	atl1_dma_req_4096 = 5
+};
+
+#define ATL1_MAX_INTR		3
+#define ATL1_MAX_TX_BUF_LEN	0x3000	/* 12288 bytes */
+
+#define ATL1_DEFAULT_TPD	256
+#define ATL1_MAX_TPD		1024
+#define ATL1_MIN_TPD		64
+#define ATL1_DEFAULT_RFD	512
+#define ATL1_MIN_RFD		128
+#define ATL1_MAX_RFD		2048
+#define ATL1_REG_COUNT		1538
+
+#define ATL1_GET_DESC(R, i, type)	(&(((type *)((R)->desc))[i]))
+#define ATL1_RFD_DESC(R, i)	ATL1_GET_DESC(R, i, struct rx_free_desc)
+#define ATL1_TPD_DESC(R, i)	ATL1_GET_DESC(R, i, struct tx_packet_desc)
+#define ATL1_RRD_DESC(R, i)	ATL1_GET_DESC(R, i, struct rx_return_desc)
+
+/*
+ * atl1_ring_header represents a single, contiguous block of DMA space
+ * mapped for the three descriptor rings (tpd, rfd, rrd) and the two
+ * message blocks (cmb, smb) described below
+ */
+struct atl1_ring_header {
+	void *desc;		/* virtual address */
+	dma_addr_t dma;		/* physical address*/
+	unsigned int size;	/* length in bytes */
+};
+
+/*
+ * atl1_buffer is wrapper around a pointer to a socket buffer
+ * so a DMA handle can be stored along with the skb
+ */
+struct atl1_buffer {
+	struct sk_buff *skb;	/* socket buffer */
+	u16 length;		/* rx buffer length */
+	u16 alloced;		/* 1 if skb allocated */
+	dma_addr_t dma;
+};
+
+/* transmit packet descriptor (tpd) ring */
+struct atl1_tpd_ring {
+	void *desc;		/* descriptor ring virtual address */
+	dma_addr_t dma;		/* descriptor ring physical address */
+	u16 size;		/* descriptor ring length in bytes */
+	u16 count;		/* number of descriptors in the ring */
+	u16 hw_idx;		/* hardware index */
+	atomic_t next_to_clean;
+	atomic_t next_to_use;
+	struct atl1_buffer *buffer_info;
+};
+
+/* receive free descriptor (rfd) ring */
+struct atl1_rfd_ring {
+	void *desc;		/* descriptor ring virtual address */
+	dma_addr_t dma;		/* descriptor ring physical address */
+	u16 size;		/* descriptor ring length in bytes */
+	u16 count;		/* number of descriptors in the ring */
+	atomic_t next_to_use;
+	u16 next_to_clean;
+	struct atl1_buffer *buffer_info;
+};
+
+/* receive return descriptor (rrd) ring */
+struct atl1_rrd_ring {
+	void *desc;		/* descriptor ring virtual address */
+	dma_addr_t dma;		/* descriptor ring physical address */
+	unsigned int size;	/* descriptor ring length in bytes */
+	u16 count;		/* number of descriptors in the ring */
+	u16 next_to_use;
+	atomic_t next_to_clean;
+};
+
+/* coalescing message block (cmb) */
+struct atl1_cmb {
+	struct coals_msg_block *cmb;
+	dma_addr_t dma;
+};
+
+/* statistics message block (smb) */
+struct atl1_smb {
+	struct stats_msg_block *smb;
+	dma_addr_t dma;
+};
+
+/* Statistics counters */
+struct atl1_sft_stats {
+	u64 rx_packets;
+	u64 tx_packets;
+	u64 rx_bytes;
+	u64 tx_bytes;
+	u64 multicast;
+	u64 collisions;
+	u64 rx_errors;
+	u64 rx_length_errors;
+	u64 rx_crc_errors;
+	u64 rx_dropped;
+	u64 rx_frame_errors;
+	u64 rx_fifo_errors;
+	u64 rx_missed_errors;
+	u64 tx_errors;
+	u64 tx_fifo_errors;
+	u64 tx_aborted_errors;
+	u64 tx_window_errors;
+	u64 tx_carrier_errors;
+	u64 tx_pause;		/* TX pause frames */
+	u64 excecol;		/* TX packets w/ excessive collisions */
+	u64 deffer;		/* TX packets deferred */
+	u64 scc;		/* packets TX after a single collision */
+	u64 mcc;		/* packets TX after multiple collisions */
+	u64 latecol;		/* TX packets w/ late collisions */
+	u64 tx_underrun;	/* TX packets aborted due to TX FIFO underrun
+				 * or TRD FIFO underrun */
+	u64 tx_trunc;		/* TX packets truncated due to size > MTU */
+	u64 rx_pause;		/* num Pause packets received. */
+	u64 rx_rrd_ov;
+	u64 rx_trunc;
+};
+
+/* hardware structure */
+struct atl1_hw {
+	u8 __iomem *hw_addr;
+	struct atl1_adapter *back;
+	enum atl1_dma_order dma_ord;
+	enum atl1_dma_rcb rcb_value;
+	enum atl1_dma_req_block dmar_block;
+	enum atl1_dma_req_block dmaw_block;
+	u8 preamble_len;
+	u8 max_retry;
+	u8 jam_ipg;		/* IPG to start JAM for collision based flow
+				 * control in half-duplex mode. In units of
+				 * 8-bit time */
+	u8 ipgt;		/* Desired back to back inter-packet gap.
+				 * The default is 96-bit time */
+	u8 min_ifg;		/* Minimum number of IFG to enforce in between
+				 * receive frames. Frame gap below such IFP
+				 * is dropped */
+	u8 ipgr1;		/* 64bit Carrier-Sense window */
+	u8 ipgr2;		/* 96-bit IPG window */
+	u8 tpd_burst;		/* Number of TPD to prefetch in cache-aligned
+				 * burst. Each TPD is 16 bytes long */
+	u8 rfd_burst;		/* Number of RFD to prefetch in cache-aligned
+				 * burst. Each RFD is 12 bytes long */
+	u8 rfd_fetch_gap;
+	u8 rrd_burst;		/* Threshold number of RRDs that can be retired
+				 * in a burst. Each RRD is 16 bytes long */
+	u8 tpd_fetch_th;
+	u8 tpd_fetch_gap;
+	u16 tx_jumbo_task_th;
+	u16 txf_burst;		/* Number of data bytes to read in a cache-
+				 * aligned burst. Each SRAM entry is 8 bytes */
+	u16 rx_jumbo_th;	/* Jumbo packet size for non-VLAN packet. VLAN
+				 * packets should add 4 bytes */
+	u16 rx_jumbo_lkah;
+	u16 rrd_ret_timer;	/* RRD retirement timer. Decrement by 1 after
+				 * every 512ns passes. */
+	u16 lcol;		/* Collision Window */
+
+	u16 cmb_tpd;
+	u16 cmb_rrd;
+	u16 cmb_rx_timer;
+	u16 cmb_tx_timer;
+	u32 smb_timer;
+	u16 media_type;
+	u16 autoneg_advertised;
+
+	u16 mii_autoneg_adv_reg;
+	u16 mii_1000t_ctrl_reg;
+
+	u32 max_frame_size;
+	u32 min_frame_size;
+
+	u16 dev_rev;
+
+	/* spi flash */
+	u8 flash_vendor;
+
+	u8 mac_addr[ETH_ALEN];
+	u8 perm_mac_addr[ETH_ALEN];
+
+	bool phy_configured;
+};
+
+struct atl1_adapter {
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+
+	struct atl1_sft_stats soft_stats;
+	u32 rx_buffer_len;
+	u32 wol;
+	u16 link_speed;
+	u16 link_duplex;
+	spinlock_t lock;
+	struct napi_struct napi;
+	struct work_struct reset_dev_task;
+	struct work_struct link_chg_task;
+
+	struct timer_list phy_config_timer;
+	bool phy_timer_pending;
+
+	/* all descriptor rings' memory */
+	struct atl1_ring_header ring_header;
+
+	/* TX */
+	struct atl1_tpd_ring tpd_ring;
+	spinlock_t mb_lock;
+
+	/* RX */
+	struct atl1_rfd_ring rfd_ring;
+	struct atl1_rrd_ring rrd_ring;
+	u64 hw_csum_err;
+	u64 hw_csum_good;
+	u32 msg_enable;
+	u16 imt;		/* interrupt moderator timer (2us resolution) */
+	u16 ict;		/* interrupt clear timer (2us resolution */
+	struct mii_if_info mii;	/* MII interface info */
+
+	/*
+	 * Use this value to check is napi handler allowed to
+	 * enable ints or not
+	 */
+	bool int_enabled;
+
+	u32 bd_number;		/* board number */
+	bool pci_using_64;
+	struct atl1_hw hw;
+	struct atl1_smb smb;
+	struct atl1_cmb cmb;
+};
+
+#endif /* ATL1_H */
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
new file mode 100644
index 0000000000..1b487c071c
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -0,0 +1,3029 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright(c) 2006 - 2007 Atheros Corporation. All rights reserved.
+ * Copyright(c) 2007 - 2008 Chris Snook <csnook@redhat.com>
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ */
+
+#include <linux/atomic.h>
+#include <linux/crc32.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/hardirq.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/interrupt.h>
+#include <linux/ip.h>
+#include <linux/irqflags.h>
+#include <linux/irqreturn.h>
+#include <linux/mii.h>
+#include <linux/net.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/pm.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/tcp.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "atl2.h"
+
+static const char atl2_driver_name[] = "atl2";
+static const struct ethtool_ops atl2_ethtool_ops;
+
+MODULE_AUTHOR("Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>");
+MODULE_DESCRIPTION("Atheros Fast Ethernet Network Driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * atl2_pci_tbl - PCI Device ID Table
+ */
+static const struct pci_device_id atl2_pci_tbl[] = {
+	{PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L2)},
+	/* required last entry */
+	{0,}
+};
+MODULE_DEVICE_TABLE(pci, atl2_pci_tbl);
+
+static void atl2_check_options(struct atl2_adapter *adapter);
+
+/**
+ * atl2_sw_init - Initialize general software structures (struct atl2_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * atl2_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ */
+static int atl2_sw_init(struct atl2_adapter *adapter)
+{
+	struct atl2_hw *hw = &adapter->hw;
+	struct pci_dev *pdev = adapter->pdev;
+
+	/* PCI config space info */
+	hw->vendor_id = pdev->vendor;
+	hw->device_id = pdev->device;
+	hw->subsystem_vendor_id = pdev->subsystem_vendor;
+	hw->subsystem_id = pdev->subsystem_device;
+	hw->revision_id  = pdev->revision;
+
+	pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
+
+	adapter->wol = 0;
+	adapter->ict = 50000;  /* ~100ms */
+	adapter->link_speed = SPEED_0;   /* hardware init */
+	adapter->link_duplex = FULL_DUPLEX;
+
+	hw->phy_configured = false;
+	hw->preamble_len = 7;
+	hw->ipgt = 0x60;
+	hw->min_ifg = 0x50;
+	hw->ipgr1 = 0x40;
+	hw->ipgr2 = 0x60;
+	hw->retry_buf = 2;
+	hw->max_retry = 0xf;
+	hw->lcol = 0x37;
+	hw->jam_ipg = 7;
+	hw->fc_rxd_hi = 0;
+	hw->fc_rxd_lo = 0;
+	hw->max_frame_size = adapter->netdev->mtu;
+
+	spin_lock_init(&adapter->stats_lock);
+
+	set_bit(__ATL2_DOWN, &adapter->flags);
+
+	return 0;
+}
+
+/**
+ * atl2_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated.  This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ */
+static void atl2_set_multi(struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	struct netdev_hw_addr *ha;
+	u32 rctl;
+	u32 hash_value;
+
+	/* Check for Promiscuous and All Multicast modes */
+	rctl = ATL2_READ_REG(hw, REG_MAC_CTRL);
+
+	if (netdev->flags & IFF_PROMISC) {
+		rctl |= MAC_CTRL_PROMIS_EN;
+	} else if (netdev->flags & IFF_ALLMULTI) {
+		rctl |= MAC_CTRL_MC_ALL_EN;
+		rctl &= ~MAC_CTRL_PROMIS_EN;
+	} else
+		rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
+
+	ATL2_WRITE_REG(hw, REG_MAC_CTRL, rctl);
+
+	/* clear the old settings from the multicast hash table */
+	ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
+	ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
+
+	/* comoute mc addresses' hash value ,and put it into hash table */
+	netdev_for_each_mc_addr(ha, netdev) {
+		hash_value = atl2_hash_mc_addr(hw, ha->addr);
+		atl2_hash_set(hw, hash_value);
+	}
+}
+
+static void init_ring_ptrs(struct atl2_adapter *adapter)
+{
+	/* Read / Write Ptr Initialize: */
+	adapter->txd_write_ptr = 0;
+	atomic_set(&adapter->txd_read_ptr, 0);
+
+	adapter->rxd_read_ptr = 0;
+	adapter->rxd_write_ptr = 0;
+
+	atomic_set(&adapter->txs_write_ptr, 0);
+	adapter->txs_next_clear = 0;
+}
+
+/**
+ * atl2_configure - Configure Transmit&Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx /Rx unit of the MAC after a reset.
+ */
+static int atl2_configure(struct atl2_adapter *adapter)
+{
+	struct atl2_hw *hw = &adapter->hw;
+	u32 value;
+
+	/* clear interrupt status */
+	ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0xffffffff);
+
+	/* set MAC Address */
+	value = (((u32)hw->mac_addr[2]) << 24) |
+		(((u32)hw->mac_addr[3]) << 16) |
+		(((u32)hw->mac_addr[4]) << 8) |
+		(((u32)hw->mac_addr[5]));
+	ATL2_WRITE_REG(hw, REG_MAC_STA_ADDR, value);
+	value = (((u32)hw->mac_addr[0]) << 8) |
+		(((u32)hw->mac_addr[1]));
+	ATL2_WRITE_REG(hw, (REG_MAC_STA_ADDR+4), value);
+
+	/* HI base address */
+	ATL2_WRITE_REG(hw, REG_DESC_BASE_ADDR_HI,
+		(u32)((adapter->ring_dma & 0xffffffff00000000ULL) >> 32));
+
+	/* LO base address */
+	ATL2_WRITE_REG(hw, REG_TXD_BASE_ADDR_LO,
+		(u32)(adapter->txd_dma & 0x00000000ffffffffULL));
+	ATL2_WRITE_REG(hw, REG_TXS_BASE_ADDR_LO,
+		(u32)(adapter->txs_dma & 0x00000000ffffffffULL));
+	ATL2_WRITE_REG(hw, REG_RXD_BASE_ADDR_LO,
+		(u32)(adapter->rxd_dma & 0x00000000ffffffffULL));
+
+	/* element count */
+	ATL2_WRITE_REGW(hw, REG_TXD_MEM_SIZE, (u16)(adapter->txd_ring_size/4));
+	ATL2_WRITE_REGW(hw, REG_TXS_MEM_SIZE, (u16)adapter->txs_ring_size);
+	ATL2_WRITE_REGW(hw, REG_RXD_BUF_NUM,  (u16)adapter->rxd_ring_size);
+
+	/* config Internal SRAM */
+/*
+    ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_tx_end);
+    ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_rx_end);
+*/
+
+	/* config IPG/IFG */
+	value = (((u32)hw->ipgt & MAC_IPG_IFG_IPGT_MASK) <<
+		MAC_IPG_IFG_IPGT_SHIFT) |
+		(((u32)hw->min_ifg & MAC_IPG_IFG_MIFG_MASK) <<
+		MAC_IPG_IFG_MIFG_SHIFT) |
+		(((u32)hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK) <<
+		MAC_IPG_IFG_IPGR1_SHIFT)|
+		(((u32)hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK) <<
+		MAC_IPG_IFG_IPGR2_SHIFT);
+	ATL2_WRITE_REG(hw, REG_MAC_IPG_IFG, value);
+
+	/* config  Half-Duplex Control */
+	value = ((u32)hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
+		(((u32)hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK) <<
+		MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
+		MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
+		(0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
+		(((u32)hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK) <<
+		MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
+	ATL2_WRITE_REG(hw, REG_MAC_HALF_DUPLX_CTRL, value);
+
+	/* set Interrupt Moderator Timer */
+	ATL2_WRITE_REGW(hw, REG_IRQ_MODU_TIMER_INIT, adapter->imt);
+	ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_ITIMER_EN);
+
+	/* set Interrupt Clear Timer */
+	ATL2_WRITE_REGW(hw, REG_CMBDISDMA_TIMER, adapter->ict);
+
+	/* set MTU */
+	ATL2_WRITE_REG(hw, REG_MTU, adapter->netdev->mtu +
+		ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
+
+	/* 1590 */
+	ATL2_WRITE_REG(hw, REG_TX_CUT_THRESH, 0x177);
+
+	/* flow control */
+	ATL2_WRITE_REGW(hw, REG_PAUSE_ON_TH, hw->fc_rxd_hi);
+	ATL2_WRITE_REGW(hw, REG_PAUSE_OFF_TH, hw->fc_rxd_lo);
+
+	/* Init mailbox */
+	ATL2_WRITE_REGW(hw, REG_MB_TXD_WR_IDX, (u16)adapter->txd_write_ptr);
+	ATL2_WRITE_REGW(hw, REG_MB_RXD_RD_IDX, (u16)adapter->rxd_read_ptr);
+
+	/* enable DMA read/write */
+	ATL2_WRITE_REGB(hw, REG_DMAR, DMAR_EN);
+	ATL2_WRITE_REGB(hw, REG_DMAW, DMAW_EN);
+
+	value = ATL2_READ_REG(&adapter->hw, REG_ISR);
+	if ((value & ISR_PHY_LINKDOWN) != 0)
+		value = 1; /* config failed */
+	else
+		value = 0;
+
+	/* clear all interrupt status */
+	ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0x3fffffff);
+	ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0);
+	return value;
+}
+
+/**
+ * atl2_setup_ring_resources - allocate Tx / RX descriptor resources
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ */
+static s32 atl2_setup_ring_resources(struct atl2_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int size;
+	u8 offset = 0;
+
+	/* real ring DMA buffer */
+	adapter->ring_size = size =
+		adapter->txd_ring_size * 1 + 7 +	/* dword align */
+		adapter->txs_ring_size * 4 + 7 +	/* dword align */
+		adapter->rxd_ring_size * 1536 + 127;	/* 128bytes align */
+
+	adapter->ring_vir_addr = dma_alloc_coherent(&pdev->dev, size,
+						    &adapter->ring_dma, GFP_KERNEL);
+	if (!adapter->ring_vir_addr)
+		return -ENOMEM;
+
+	/* Init TXD Ring */
+	adapter->txd_dma = adapter->ring_dma ;
+	offset = (adapter->txd_dma & 0x7) ? (8 - (adapter->txd_dma & 0x7)) : 0;
+	adapter->txd_dma += offset;
+	adapter->txd_ring = adapter->ring_vir_addr + offset;
+
+	/* Init TXS Ring */
+	adapter->txs_dma = adapter->txd_dma + adapter->txd_ring_size;
+	offset = (adapter->txs_dma & 0x7) ? (8 - (adapter->txs_dma & 0x7)) : 0;
+	adapter->txs_dma += offset;
+	adapter->txs_ring = (struct tx_pkt_status *)
+		(((u8 *)adapter->txd_ring) + (adapter->txd_ring_size + offset));
+
+	/* Init RXD Ring */
+	adapter->rxd_dma = adapter->txs_dma + adapter->txs_ring_size * 4;
+	offset = (adapter->rxd_dma & 127) ?
+		(128 - (adapter->rxd_dma & 127)) : 0;
+	if (offset > 7)
+		offset -= 8;
+	else
+		offset += (128 - 8);
+
+	adapter->rxd_dma += offset;
+	adapter->rxd_ring = (struct rx_desc *) (((u8 *)adapter->txs_ring) +
+		(adapter->txs_ring_size * 4 + offset));
+
+/*
+ * Read / Write Ptr Initialize:
+ *      init_ring_ptrs(adapter);
+ */
+	return 0;
+}
+
+/**
+ * atl2_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ */
+static inline void atl2_irq_enable(struct atl2_adapter *adapter)
+{
+	ATL2_WRITE_REG(&adapter->hw, REG_IMR, IMR_NORMAL_MASK);
+	ATL2_WRITE_FLUSH(&adapter->hw);
+}
+
+/**
+ * atl2_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ */
+static inline void atl2_irq_disable(struct atl2_adapter *adapter)
+{
+    ATL2_WRITE_REG(&adapter->hw, REG_IMR, 0);
+    ATL2_WRITE_FLUSH(&adapter->hw);
+    synchronize_irq(adapter->pdev->irq);
+}
+
+static void __atl2_vlan_mode(netdev_features_t features, u32 *ctrl)
+{
+	if (features & NETIF_F_HW_VLAN_CTAG_RX) {
+		/* enable VLAN tag insert/strip */
+		*ctrl |= MAC_CTRL_RMV_VLAN;
+	} else {
+		/* disable VLAN tag insert/strip */
+		*ctrl &= ~MAC_CTRL_RMV_VLAN;
+	}
+}
+
+static void atl2_vlan_mode(struct net_device *netdev,
+	netdev_features_t features)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	u32 ctrl;
+
+	atl2_irq_disable(adapter);
+
+	ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL);
+	__atl2_vlan_mode(features, &ctrl);
+	ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl);
+
+	atl2_irq_enable(adapter);
+}
+
+static void atl2_restore_vlan(struct atl2_adapter *adapter)
+{
+	atl2_vlan_mode(adapter->netdev, adapter->netdev->features);
+}
+
+static netdev_features_t atl2_fix_features(struct net_device *netdev,
+	netdev_features_t features)
+{
+	/*
+	 * Since there is no support for separate rx/tx vlan accel
+	 * enable/disable make sure tx flag is always in same state as rx.
+	 */
+	if (features & NETIF_F_HW_VLAN_CTAG_RX)
+		features |= NETIF_F_HW_VLAN_CTAG_TX;
+	else
+		features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+
+	return features;
+}
+
+static int atl2_set_features(struct net_device *netdev,
+	netdev_features_t features)
+{
+	netdev_features_t changed = netdev->features ^ features;
+
+	if (changed & NETIF_F_HW_VLAN_CTAG_RX)
+		atl2_vlan_mode(netdev, features);
+
+	return 0;
+}
+
+static void atl2_intr_rx(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct rx_desc *rxd;
+	struct sk_buff *skb;
+
+	do {
+		rxd = adapter->rxd_ring+adapter->rxd_write_ptr;
+		if (!rxd->status.update)
+			break; /* end of tx */
+
+		/* clear this flag at once */
+		rxd->status.update = 0;
+
+		if (rxd->status.ok && rxd->status.pkt_size >= 60) {
+			int rx_size = (int)(rxd->status.pkt_size - 4);
+			/* alloc new buffer */
+			skb = netdev_alloc_skb_ip_align(netdev, rx_size);
+			if (NULL == skb) {
+				/*
+				 * Check that some rx space is free. If not,
+				 * free one and mark stats->rx_dropped++.
+				 */
+				netdev->stats.rx_dropped++;
+				break;
+			}
+			memcpy(skb->data, rxd->packet, rx_size);
+			skb_put(skb, rx_size);
+			skb->protocol = eth_type_trans(skb, netdev);
+			if (rxd->status.vlan) {
+				u16 vlan_tag = (rxd->status.vtag>>4) |
+					((rxd->status.vtag&7) << 13) |
+					((rxd->status.vtag&8) << 9);
+
+				__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
+			}
+			netif_rx(skb);
+			netdev->stats.rx_bytes += rx_size;
+			netdev->stats.rx_packets++;
+		} else {
+			netdev->stats.rx_errors++;
+
+			if (rxd->status.ok && rxd->status.pkt_size <= 60)
+				netdev->stats.rx_length_errors++;
+			if (rxd->status.mcast)
+				netdev->stats.multicast++;
+			if (rxd->status.crc)
+				netdev->stats.rx_crc_errors++;
+			if (rxd->status.align)
+				netdev->stats.rx_frame_errors++;
+		}
+
+		/* advance write ptr */
+		if (++adapter->rxd_write_ptr == adapter->rxd_ring_size)
+			adapter->rxd_write_ptr = 0;
+	} while (1);
+
+	/* update mailbox? */
+	adapter->rxd_read_ptr = adapter->rxd_write_ptr;
+	ATL2_WRITE_REGW(&adapter->hw, REG_MB_RXD_RD_IDX, adapter->rxd_read_ptr);
+}
+
+static void atl2_intr_tx(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	u32 txd_read_ptr;
+	u32 txs_write_ptr;
+	struct tx_pkt_status *txs;
+	struct tx_pkt_header *txph;
+	int free_hole = 0;
+
+	do {
+		txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr);
+		txs = adapter->txs_ring + txs_write_ptr;
+		if (!txs->update)
+			break; /* tx stop here */
+
+		free_hole = 1;
+		txs->update = 0;
+
+		if (++txs_write_ptr == adapter->txs_ring_size)
+			txs_write_ptr = 0;
+		atomic_set(&adapter->txs_write_ptr, (int)txs_write_ptr);
+
+		txd_read_ptr = (u32) atomic_read(&adapter->txd_read_ptr);
+		txph = (struct tx_pkt_header *)
+			(((u8 *)adapter->txd_ring) + txd_read_ptr);
+
+		if (txph->pkt_size != txs->pkt_size) {
+			struct tx_pkt_status *old_txs = txs;
+			printk(KERN_WARNING
+				"%s: txs packet size not consistent with txd"
+				" txd_:0x%08x, txs_:0x%08x!\n",
+				adapter->netdev->name,
+				*(u32 *)txph, *(u32 *)txs);
+			printk(KERN_WARNING
+				"txd read ptr: 0x%x\n",
+				txd_read_ptr);
+			txs = adapter->txs_ring + txs_write_ptr;
+			printk(KERN_WARNING
+				"txs-behind:0x%08x\n",
+				*(u32 *)txs);
+			if (txs_write_ptr < 2) {
+				txs = adapter->txs_ring +
+					(adapter->txs_ring_size +
+					txs_write_ptr - 2);
+			} else {
+				txs = adapter->txs_ring + (txs_write_ptr - 2);
+			}
+			printk(KERN_WARNING
+				"txs-before:0x%08x\n",
+				*(u32 *)txs);
+			txs = old_txs;
+		}
+
+		 /* 4for TPH */
+		txd_read_ptr += (((u32)(txph->pkt_size) + 7) & ~3);
+		if (txd_read_ptr >= adapter->txd_ring_size)
+			txd_read_ptr -= adapter->txd_ring_size;
+
+		atomic_set(&adapter->txd_read_ptr, (int)txd_read_ptr);
+
+		/* tx statistics: */
+		if (txs->ok) {
+			netdev->stats.tx_bytes += txs->pkt_size;
+			netdev->stats.tx_packets++;
+		}
+		else
+			netdev->stats.tx_errors++;
+
+		if (txs->defer)
+			netdev->stats.collisions++;
+		if (txs->abort_col)
+			netdev->stats.tx_aborted_errors++;
+		if (txs->late_col)
+			netdev->stats.tx_window_errors++;
+		if (txs->underrun)
+			netdev->stats.tx_fifo_errors++;
+	} while (1);
+
+	if (free_hole) {
+		if (netif_queue_stopped(adapter->netdev) &&
+			netif_carrier_ok(adapter->netdev))
+			netif_wake_queue(adapter->netdev);
+	}
+}
+
+static void atl2_check_for_link(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	u16 phy_data = 0;
+
+	spin_lock(&adapter->stats_lock);
+	atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	spin_unlock(&adapter->stats_lock);
+
+	/* notify upper layer link down ASAP */
+	if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */
+		if (netif_carrier_ok(netdev)) { /* old link state: Up */
+		printk(KERN_INFO "%s: %s NIC Link is Down\n",
+			atl2_driver_name, netdev->name);
+		adapter->link_speed = SPEED_0;
+		netif_carrier_off(netdev);
+		netif_stop_queue(netdev);
+		}
+	}
+	schedule_work(&adapter->link_chg_task);
+}
+
+static inline void atl2_clear_phy_int(struct atl2_adapter *adapter)
+{
+	u16 phy_data;
+	spin_lock(&adapter->stats_lock);
+	atl2_read_phy_reg(&adapter->hw, 19, &phy_data);
+	spin_unlock(&adapter->stats_lock);
+}
+
+/**
+ * atl2_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ */
+static irqreturn_t atl2_intr(int irq, void *data)
+{
+	struct atl2_adapter *adapter = netdev_priv(data);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 status;
+
+	status = ATL2_READ_REG(hw, REG_ISR);
+	if (0 == status)
+		return IRQ_NONE;
+
+	/* link event */
+	if (status & ISR_PHY)
+		atl2_clear_phy_int(adapter);
+
+	/* clear ISR status, and Enable CMB DMA/Disable Interrupt */
+	ATL2_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT);
+
+	/* check if PCIE PHY Link down */
+	if (status & ISR_PHY_LINKDOWN) {
+		if (netif_running(adapter->netdev)) { /* reset MAC */
+			ATL2_WRITE_REG(hw, REG_ISR, 0);
+			ATL2_WRITE_REG(hw, REG_IMR, 0);
+			ATL2_WRITE_FLUSH(hw);
+			schedule_work(&adapter->reset_task);
+			return IRQ_HANDLED;
+		}
+	}
+
+	/* check if DMA read/write error? */
+	if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
+		ATL2_WRITE_REG(hw, REG_ISR, 0);
+		ATL2_WRITE_REG(hw, REG_IMR, 0);
+		ATL2_WRITE_FLUSH(hw);
+		schedule_work(&adapter->reset_task);
+		return IRQ_HANDLED;
+	}
+
+	/* link event */
+	if (status & (ISR_PHY | ISR_MANUAL)) {
+		adapter->netdev->stats.tx_carrier_errors++;
+		atl2_check_for_link(adapter);
+	}
+
+	/* transmit event */
+	if (status & ISR_TX_EVENT)
+		atl2_intr_tx(adapter);
+
+	/* rx exception */
+	if (status & ISR_RX_EVENT)
+		atl2_intr_rx(adapter);
+
+	/* re-enable Interrupt */
+	ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0);
+	return IRQ_HANDLED;
+}
+
+static int atl2_request_irq(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	int flags, err = 0;
+
+	flags = IRQF_SHARED;
+	adapter->have_msi = true;
+	err = pci_enable_msi(adapter->pdev);
+	if (err)
+		adapter->have_msi = false;
+
+	if (adapter->have_msi)
+		flags &= ~IRQF_SHARED;
+
+	return request_irq(adapter->pdev->irq, atl2_intr, flags, netdev->name,
+		netdev);
+}
+
+/**
+ * atl2_free_ring_resources - Free Tx / RX descriptor Resources
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ */
+static void atl2_free_ring_resources(struct atl2_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	dma_free_coherent(&pdev->dev, adapter->ring_size,
+			  adapter->ring_vir_addr, adapter->ring_dma);
+}
+
+/**
+ * atl2_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).  At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ */
+static int atl2_open(struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	int err;
+	u32 val;
+
+	/* disallow open during test */
+	if (test_bit(__ATL2_TESTING, &adapter->flags))
+		return -EBUSY;
+
+	/* allocate transmit descriptors */
+	err = atl2_setup_ring_resources(adapter);
+	if (err)
+		return err;
+
+	err = atl2_init_hw(&adapter->hw);
+	if (err) {
+		err = -EIO;
+		goto err_init_hw;
+	}
+
+	/* hardware has been reset, we need to reload some things */
+	atl2_set_multi(netdev);
+	init_ring_ptrs(adapter);
+
+	atl2_restore_vlan(adapter);
+
+	if (atl2_configure(adapter)) {
+		err = -EIO;
+		goto err_config;
+	}
+
+	err = atl2_request_irq(adapter);
+	if (err)
+		goto err_req_irq;
+
+	clear_bit(__ATL2_DOWN, &adapter->flags);
+
+	mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 4*HZ));
+
+	val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL);
+	ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL,
+		val | MASTER_CTRL_MANUAL_INT);
+
+	atl2_irq_enable(adapter);
+
+	return 0;
+
+err_init_hw:
+err_req_irq:
+err_config:
+	atl2_free_ring_resources(adapter);
+	atl2_reset_hw(&adapter->hw);
+
+	return err;
+}
+
+static void atl2_down(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	/* signal that we're down so the interrupt handler does not
+	 * reschedule our watchdog timer */
+	set_bit(__ATL2_DOWN, &adapter->flags);
+
+	netif_tx_disable(netdev);
+
+	/* reset MAC to disable all RX/TX */
+	atl2_reset_hw(&adapter->hw);
+	msleep(1);
+
+	atl2_irq_disable(adapter);
+
+	del_timer_sync(&adapter->watchdog_timer);
+	del_timer_sync(&adapter->phy_config_timer);
+	clear_bit(0, &adapter->cfg_phy);
+
+	netif_carrier_off(netdev);
+	adapter->link_speed = SPEED_0;
+	adapter->link_duplex = -1;
+}
+
+static void atl2_free_irq(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	free_irq(adapter->pdev->irq, netdev);
+
+#ifdef CONFIG_PCI_MSI
+	if (adapter->have_msi)
+		pci_disable_msi(adapter->pdev);
+#endif
+}
+
+/**
+ * atl2_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ */
+static int atl2_close(struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags));
+
+	atl2_down(adapter);
+	atl2_free_irq(adapter);
+	atl2_free_ring_resources(adapter);
+
+	return 0;
+}
+
+static inline int TxsFreeUnit(struct atl2_adapter *adapter)
+{
+	u32 txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr);
+
+	return (adapter->txs_next_clear >= txs_write_ptr) ?
+		(int) (adapter->txs_ring_size - adapter->txs_next_clear +
+		txs_write_ptr - 1) :
+		(int) (txs_write_ptr - adapter->txs_next_clear - 1);
+}
+
+static inline int TxdFreeBytes(struct atl2_adapter *adapter)
+{
+	u32 txd_read_ptr = (u32)atomic_read(&adapter->txd_read_ptr);
+
+	return (adapter->txd_write_ptr >= txd_read_ptr) ?
+		(int) (adapter->txd_ring_size - adapter->txd_write_ptr +
+		txd_read_ptr - 1) :
+		(int) (txd_read_ptr - adapter->txd_write_ptr - 1);
+}
+
+static netdev_tx_t atl2_xmit_frame(struct sk_buff *skb,
+					 struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct tx_pkt_header *txph;
+	u32 offset, copy_len;
+	int txs_unused;
+	int txbuf_unused;
+
+	if (test_bit(__ATL2_DOWN, &adapter->flags)) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (unlikely(skb->len <= 0)) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	txs_unused = TxsFreeUnit(adapter);
+	txbuf_unused = TxdFreeBytes(adapter);
+
+	if (skb->len + sizeof(struct tx_pkt_header) + 4  > txbuf_unused ||
+		txs_unused < 1) {
+		/* not enough resources */
+		netif_stop_queue(netdev);
+		return NETDEV_TX_BUSY;
+	}
+
+	offset = adapter->txd_write_ptr;
+
+	txph = (struct tx_pkt_header *) (((u8 *)adapter->txd_ring) + offset);
+
+	*(u32 *)txph = 0;
+	txph->pkt_size = skb->len;
+
+	offset += 4;
+	if (offset >= adapter->txd_ring_size)
+		offset -= adapter->txd_ring_size;
+	copy_len = adapter->txd_ring_size - offset;
+	if (copy_len >= skb->len) {
+		memcpy(((u8 *)adapter->txd_ring) + offset, skb->data, skb->len);
+		offset += ((u32)(skb->len + 3) & ~3);
+	} else {
+		memcpy(((u8 *)adapter->txd_ring)+offset, skb->data, copy_len);
+		memcpy((u8 *)adapter->txd_ring, skb->data+copy_len,
+			skb->len-copy_len);
+		offset = ((u32)(skb->len-copy_len + 3) & ~3);
+	}
+#ifdef NETIF_F_HW_VLAN_CTAG_TX
+	if (skb_vlan_tag_present(skb)) {
+		u16 vlan_tag = skb_vlan_tag_get(skb);
+		vlan_tag = (vlan_tag << 4) |
+			(vlan_tag >> 13) |
+			((vlan_tag >> 9) & 0x8);
+		txph->ins_vlan = 1;
+		txph->vlan = vlan_tag;
+	}
+#endif
+	if (offset >= adapter->txd_ring_size)
+		offset -= adapter->txd_ring_size;
+	adapter->txd_write_ptr = offset;
+
+	/* clear txs before send */
+	adapter->txs_ring[adapter->txs_next_clear].update = 0;
+	if (++adapter->txs_next_clear == adapter->txs_ring_size)
+		adapter->txs_next_clear = 0;
+
+	ATL2_WRITE_REGW(&adapter->hw, REG_MB_TXD_WR_IDX,
+		(adapter->txd_write_ptr >> 2));
+
+	dev_consume_skb_any(skb);
+	return NETDEV_TX_OK;
+}
+
+/**
+ * atl2_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atl2_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+
+	/* set MTU */
+	netdev->mtu = new_mtu;
+	hw->max_frame_size = new_mtu;
+	ATL2_WRITE_REG(hw, REG_MTU, new_mtu + ETH_HLEN +
+		       VLAN_HLEN + ETH_FCS_LEN);
+
+	return 0;
+}
+
+/**
+ * atl2_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atl2_set_mac(struct net_device *netdev, void *p)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	eth_hw_addr_set(netdev, addr->sa_data);
+	memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
+
+	atl2_set_mac_addr(&adapter->hw);
+
+	return 0;
+}
+
+static int atl2_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct mii_ioctl_data *data = if_mii(ifr);
+	unsigned long flags;
+
+	switch (cmd) {
+	case SIOCGMIIPHY:
+		data->phy_id = 0;
+		break;
+	case SIOCGMIIREG:
+		spin_lock_irqsave(&adapter->stats_lock, flags);
+		if (atl2_read_phy_reg(&adapter->hw,
+			data->reg_num & 0x1F, &data->val_out)) {
+			spin_unlock_irqrestore(&adapter->stats_lock, flags);
+			return -EIO;
+		}
+		spin_unlock_irqrestore(&adapter->stats_lock, flags);
+		break;
+	case SIOCSMIIREG:
+		if (data->reg_num & ~(0x1F))
+			return -EFAULT;
+		spin_lock_irqsave(&adapter->stats_lock, flags);
+		if (atl2_write_phy_reg(&adapter->hw, data->reg_num,
+			data->val_in)) {
+			spin_unlock_irqrestore(&adapter->stats_lock, flags);
+			return -EIO;
+		}
+		spin_unlock_irqrestore(&adapter->stats_lock, flags);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static int atl2_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		return atl2_mii_ioctl(netdev, ifr, cmd);
+#ifdef ETHTOOL_OPS_COMPAT
+	case SIOCETHTOOL:
+		return ethtool_ioctl(ifr);
+#endif
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+/**
+ * atl2_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ * @txqueue: index of the hanging transmit queue
+ */
+static void atl2_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	/* Do the reset outside of interrupt context */
+	schedule_work(&adapter->reset_task);
+}
+
+/**
+ * atl2_watchdog - Timer Call-back
+ * @t: timer list containing a pointer to netdev cast into an unsigned long
+ */
+static void atl2_watchdog(struct timer_list *t)
+{
+	struct atl2_adapter *adapter = from_timer(adapter, t, watchdog_timer);
+
+	if (!test_bit(__ATL2_DOWN, &adapter->flags)) {
+		u32 drop_rxd, drop_rxs;
+		unsigned long flags;
+
+		spin_lock_irqsave(&adapter->stats_lock, flags);
+		drop_rxd = ATL2_READ_REG(&adapter->hw, REG_STS_RXD_OV);
+		drop_rxs = ATL2_READ_REG(&adapter->hw, REG_STS_RXS_OV);
+		spin_unlock_irqrestore(&adapter->stats_lock, flags);
+
+		adapter->netdev->stats.rx_over_errors += drop_rxd + drop_rxs;
+
+		/* Reset the timer */
+		mod_timer(&adapter->watchdog_timer,
+			  round_jiffies(jiffies + 4 * HZ));
+	}
+}
+
+/**
+ * atl2_phy_config - Timer Call-back
+ * @t: timer list containing a pointer to netdev cast into an unsigned long
+ */
+static void atl2_phy_config(struct timer_list *t)
+{
+	struct atl2_adapter *adapter = from_timer(adapter, t,
+						  phy_config_timer);
+	struct atl2_hw *hw = &adapter->hw;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->stats_lock, flags);
+	atl2_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
+	atl2_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN |
+		MII_CR_RESTART_AUTO_NEG);
+	spin_unlock_irqrestore(&adapter->stats_lock, flags);
+	clear_bit(0, &adapter->cfg_phy);
+}
+
+static int atl2_up(struct atl2_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	int err = 0;
+	u32 val;
+
+	/* hardware has been reset, we need to reload some things */
+
+	err = atl2_init_hw(&adapter->hw);
+	if (err) {
+		err = -EIO;
+		return err;
+	}
+
+	atl2_set_multi(netdev);
+	init_ring_ptrs(adapter);
+
+	atl2_restore_vlan(adapter);
+
+	if (atl2_configure(adapter)) {
+		err = -EIO;
+		goto err_up;
+	}
+
+	clear_bit(__ATL2_DOWN, &adapter->flags);
+
+	val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL);
+	ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL, val |
+		MASTER_CTRL_MANUAL_INT);
+
+	atl2_irq_enable(adapter);
+
+err_up:
+	return err;
+}
+
+static void atl2_reinit_locked(struct atl2_adapter *adapter)
+{
+	while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags))
+		msleep(1);
+	atl2_down(adapter);
+	atl2_up(adapter);
+	clear_bit(__ATL2_RESETTING, &adapter->flags);
+}
+
+static void atl2_reset_task(struct work_struct *work)
+{
+	struct atl2_adapter *adapter;
+	adapter = container_of(work, struct atl2_adapter, reset_task);
+
+	atl2_reinit_locked(adapter);
+}
+
+static void atl2_setup_mac_ctrl(struct atl2_adapter *adapter)
+{
+	u32 value;
+	struct atl2_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+
+	/* Config MAC CTRL Register */
+	value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY;
+
+	/* duplex */
+	if (FULL_DUPLEX == adapter->link_duplex)
+		value |= MAC_CTRL_DUPLX;
+
+	/* flow control */
+	value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
+
+	/* PAD & CRC */
+	value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
+
+	/* preamble length */
+	value |= (((u32)adapter->hw.preamble_len & MAC_CTRL_PRMLEN_MASK) <<
+		MAC_CTRL_PRMLEN_SHIFT);
+
+	/* vlan */
+	__atl2_vlan_mode(netdev->features, &value);
+
+	/* filter mode */
+	value |= MAC_CTRL_BC_EN;
+	if (netdev->flags & IFF_PROMISC)
+		value |= MAC_CTRL_PROMIS_EN;
+	else if (netdev->flags & IFF_ALLMULTI)
+		value |= MAC_CTRL_MC_ALL_EN;
+
+	/* half retry buffer */
+	value |= (((u32)(adapter->hw.retry_buf &
+		MAC_CTRL_HALF_LEFT_BUF_MASK)) << MAC_CTRL_HALF_LEFT_BUF_SHIFT);
+
+	ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
+}
+
+static int atl2_check_link(struct atl2_adapter *adapter)
+{
+	struct atl2_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	int ret_val;
+	u16 speed, duplex, phy_data;
+	int reconfig = 0;
+
+	/* MII_BMSR must read twise */
+	atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
+	atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
+	if (!(phy_data&BMSR_LSTATUS)) { /* link down */
+		if (netif_carrier_ok(netdev)) { /* old link state: Up */
+			u32 value;
+			/* disable rx */
+			value = ATL2_READ_REG(hw, REG_MAC_CTRL);
+			value &= ~MAC_CTRL_RX_EN;
+			ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
+			adapter->link_speed = SPEED_0;
+			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
+		}
+		return 0;
+	}
+
+	/* Link Up */
+	ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex);
+	if (ret_val)
+		return ret_val;
+	switch (hw->MediaType) {
+	case MEDIA_TYPE_100M_FULL:
+		if (speed  != SPEED_100 || duplex != FULL_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_100M_HALF:
+		if (speed  != SPEED_100 || duplex != HALF_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_10M_FULL:
+		if (speed != SPEED_10 || duplex != FULL_DUPLEX)
+			reconfig = 1;
+		break;
+	case MEDIA_TYPE_10M_HALF:
+		if (speed  != SPEED_10 || duplex != HALF_DUPLEX)
+			reconfig = 1;
+		break;
+	}
+	/* link result is our setting */
+	if (reconfig == 0) {
+		if (adapter->link_speed != speed ||
+			adapter->link_duplex != duplex) {
+			adapter->link_speed = speed;
+			adapter->link_duplex = duplex;
+			atl2_setup_mac_ctrl(adapter);
+			printk(KERN_INFO "%s: %s NIC Link is Up<%d Mbps %s>\n",
+				atl2_driver_name, netdev->name,
+				adapter->link_speed,
+				adapter->link_duplex == FULL_DUPLEX ?
+					"Full Duplex" : "Half Duplex");
+		}
+
+		if (!netif_carrier_ok(netdev)) { /* Link down -> Up */
+			netif_carrier_on(netdev);
+			netif_wake_queue(netdev);
+		}
+		return 0;
+	}
+
+	/* change original link status */
+	if (netif_carrier_ok(netdev)) {
+		u32 value;
+		/* disable rx */
+		value = ATL2_READ_REG(hw, REG_MAC_CTRL);
+		value &= ~MAC_CTRL_RX_EN;
+		ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
+
+		adapter->link_speed = SPEED_0;
+		netif_carrier_off(netdev);
+		netif_stop_queue(netdev);
+	}
+
+	/* auto-neg, insert timer to re-config phy
+	 * (if interval smaller than 5 seconds, something strange) */
+	if (!test_bit(__ATL2_DOWN, &adapter->flags)) {
+		if (!test_and_set_bit(0, &adapter->cfg_phy))
+			mod_timer(&adapter->phy_config_timer,
+				  round_jiffies(jiffies + 5 * HZ));
+	}
+
+	return 0;
+}
+
+/**
+ * atl2_link_chg_task - deal with link change event Out of interrupt context
+ * @work: pointer to work struct with private info
+ */
+static void atl2_link_chg_task(struct work_struct *work)
+{
+	struct atl2_adapter *adapter;
+	unsigned long flags;
+
+	adapter = container_of(work, struct atl2_adapter, link_chg_task);
+
+	spin_lock_irqsave(&adapter->stats_lock, flags);
+	atl2_check_link(adapter);
+	spin_unlock_irqrestore(&adapter->stats_lock, flags);
+}
+
+static void atl2_setup_pcicmd(struct pci_dev *pdev)
+{
+	u16 cmd;
+
+	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
+
+	if (cmd & PCI_COMMAND_INTX_DISABLE)
+		cmd &= ~PCI_COMMAND_INTX_DISABLE;
+	if (cmd & PCI_COMMAND_IO)
+		cmd &= ~PCI_COMMAND_IO;
+	if (0 == (cmd & PCI_COMMAND_MEMORY))
+		cmd |= PCI_COMMAND_MEMORY;
+	if (0 == (cmd & PCI_COMMAND_MASTER))
+		cmd |= PCI_COMMAND_MASTER;
+	pci_write_config_word(pdev, PCI_COMMAND, cmd);
+
+	/*
+	 * some motherboards BIOS(PXE/EFI) driver may set PME
+	 * while they transfer control to OS (Windows/Linux)
+	 * so we should clear this bit before NIC work normally
+	 */
+	pci_write_config_dword(pdev, REG_PM_CTRLSTAT, 0);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void atl2_poll_controller(struct net_device *netdev)
+{
+	disable_irq(netdev->irq);
+	atl2_intr(netdev->irq, netdev);
+	enable_irq(netdev->irq);
+}
+#endif
+
+
+static const struct net_device_ops atl2_netdev_ops = {
+	.ndo_open		= atl2_open,
+	.ndo_stop		= atl2_close,
+	.ndo_start_xmit		= atl2_xmit_frame,
+	.ndo_set_rx_mode	= atl2_set_multi,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= atl2_set_mac,
+	.ndo_change_mtu		= atl2_change_mtu,
+	.ndo_fix_features	= atl2_fix_features,
+	.ndo_set_features	= atl2_set_features,
+	.ndo_eth_ioctl		= atl2_ioctl,
+	.ndo_tx_timeout		= atl2_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= atl2_poll_controller,
+#endif
+};
+
+/**
+ * atl2_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in atl2_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * atl2_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ */
+static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct net_device *netdev;
+	struct atl2_adapter *adapter;
+	static int cards_found = 0;
+	unsigned long mmio_start;
+	int mmio_len;
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	/*
+	 * atl2 is a shared-high-32-bit device, so we're stuck with 32-bit DMA
+	 * until the kernel has the proper infrastructure to support 64-bit DMA
+	 * on these devices.
+	 */
+	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)) &&
+	    dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
+		printk(KERN_ERR "atl2: No usable DMA configuration, aborting\n");
+		err = -EIO;
+		goto err_dma;
+	}
+
+	/* Mark all PCI regions associated with PCI device
+	 * pdev as being reserved by owner atl2_driver_name */
+	err = pci_request_regions(pdev, atl2_driver_name);
+	if (err)
+		goto err_pci_reg;
+
+	/* Enables bus-mastering on the device and calls
+	 * pcibios_set_master to do the needed arch specific settings */
+	pci_set_master(pdev);
+
+	netdev = alloc_etherdev(sizeof(struct atl2_adapter));
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_alloc_etherdev;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	pci_set_drvdata(pdev, netdev);
+	adapter = netdev_priv(netdev);
+	adapter->netdev = netdev;
+	adapter->pdev = pdev;
+	adapter->hw.back = adapter;
+
+	mmio_start = pci_resource_start(pdev, 0x0);
+	mmio_len = pci_resource_len(pdev, 0x0);
+
+	adapter->hw.mem_rang = (u32)mmio_len;
+	adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
+	if (!adapter->hw.hw_addr) {
+		err = -EIO;
+		goto err_ioremap;
+	}
+
+	atl2_setup_pcicmd(pdev);
+
+	netdev->netdev_ops = &atl2_netdev_ops;
+	netdev->ethtool_ops = &atl2_ethtool_ops;
+	netdev->watchdog_timeo = 5 * HZ;
+	netdev->min_mtu = 40;
+	netdev->max_mtu = ETH_DATA_LEN + VLAN_HLEN;
+	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+
+	netdev->mem_start = mmio_start;
+	netdev->mem_end = mmio_start + mmio_len;
+	adapter->bd_number = cards_found;
+	adapter->pci_using_64 = false;
+
+	/* setup the private structure */
+	err = atl2_sw_init(adapter);
+	if (err)
+		goto err_sw_init;
+
+	netdev->hw_features = NETIF_F_HW_VLAN_CTAG_RX;
+	netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
+
+	/* Init PHY as early as possible due to power saving issue  */
+	atl2_phy_init(&adapter->hw);
+
+	/* reset the controller to
+	 * put the device in a known good starting state */
+
+	if (atl2_reset_hw(&adapter->hw)) {
+		err = -EIO;
+		goto err_reset;
+	}
+
+	/* copy the MAC address out of the EEPROM */
+	atl2_read_mac_addr(&adapter->hw);
+	eth_hw_addr_set(netdev, adapter->hw.mac_addr);
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		err = -EIO;
+		goto err_eeprom;
+	}
+
+	atl2_check_options(adapter);
+
+	timer_setup(&adapter->watchdog_timer, atl2_watchdog, 0);
+
+	timer_setup(&adapter->phy_config_timer, atl2_phy_config, 0);
+
+	INIT_WORK(&adapter->reset_task, atl2_reset_task);
+	INIT_WORK(&adapter->link_chg_task, atl2_link_chg_task);
+
+	strcpy(netdev->name, "eth%d"); /* ?? */
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	/* assume we have no link for now */
+	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
+
+	cards_found++;
+
+	return 0;
+
+err_reset:
+err_register:
+err_sw_init:
+err_eeprom:
+	iounmap(adapter->hw.hw_addr);
+err_ioremap:
+	free_netdev(netdev);
+err_alloc_etherdev:
+	pci_release_regions(pdev);
+err_pci_reg:
+err_dma:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * atl2_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * atl2_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ */
+/* FIXME: write the original MAC address back in case it was changed from a
+ * BIOS-set value, as in atl1 -- CHS */
+static void atl2_remove(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	/* flush_scheduled work may reschedule our watchdog task, so
+	 * explicitly disable watchdog tasks from being rescheduled  */
+	set_bit(__ATL2_DOWN, &adapter->flags);
+
+	del_timer_sync(&adapter->watchdog_timer);
+	del_timer_sync(&adapter->phy_config_timer);
+	cancel_work_sync(&adapter->reset_task);
+	cancel_work_sync(&adapter->link_chg_task);
+
+	unregister_netdev(netdev);
+
+	atl2_force_ps(&adapter->hw);
+
+	iounmap(adapter->hw.hw_addr);
+	pci_release_regions(pdev);
+
+	free_netdev(netdev);
+
+	pci_disable_device(pdev);
+}
+
+static int atl2_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u16 speed, duplex;
+	u32 ctrl = 0;
+	u32 wufc = adapter->wol;
+
+#ifdef CONFIG_PM
+	int retval = 0;
+#endif
+
+	netif_device_detach(netdev);
+
+	if (netif_running(netdev)) {
+		WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags));
+		atl2_down(adapter);
+	}
+
+#ifdef CONFIG_PM
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+#endif
+
+	atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl);
+	atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl);
+	if (ctrl & BMSR_LSTATUS)
+		wufc &= ~ATLX_WUFC_LNKC;
+
+	if (0 != (ctrl & BMSR_LSTATUS) && 0 != wufc) {
+		u32 ret_val;
+		/* get current link speed & duplex */
+		ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex);
+		if (ret_val) {
+			printk(KERN_DEBUG
+				"%s: get speed&duplex error while suspend\n",
+				atl2_driver_name);
+			goto wol_dis;
+		}
+
+		ctrl = 0;
+
+		/* turn on magic packet wol */
+		if (wufc & ATLX_WUFC_MAG)
+			ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN);
+
+		/* ignore Link Chg event when Link is up */
+		ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl);
+
+		/* Config MAC CTRL Register */
+		ctrl = MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY;
+		if (FULL_DUPLEX == adapter->link_duplex)
+			ctrl |= MAC_CTRL_DUPLX;
+		ctrl |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
+		ctrl |= (((u32)adapter->hw.preamble_len &
+			MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
+		ctrl |= (((u32)(adapter->hw.retry_buf &
+			MAC_CTRL_HALF_LEFT_BUF_MASK)) <<
+			MAC_CTRL_HALF_LEFT_BUF_SHIFT);
+		if (wufc & ATLX_WUFC_MAG) {
+			/* magic packet maybe Broadcast&multicast&Unicast */
+			ctrl |= MAC_CTRL_BC_EN;
+		}
+
+		ATL2_WRITE_REG(hw, REG_MAC_CTRL, ctrl);
+
+		/* pcie patch */
+		ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
+		ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
+		ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
+		ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
+		ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
+		ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
+
+		pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
+		goto suspend_exit;
+	}
+
+	if (0 == (ctrl&BMSR_LSTATUS) && 0 != (wufc&ATLX_WUFC_LNKC)) {
+		/* link is down, so only LINK CHG WOL event enable */
+		ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
+		ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl);
+		ATL2_WRITE_REG(hw, REG_MAC_CTRL, 0);
+
+		/* pcie patch */
+		ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
+		ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
+		ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
+		ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
+		ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
+		ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
+
+		hw->phy_configured = false; /* re-init PHY when resume */
+
+		pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
+
+		goto suspend_exit;
+	}
+
+wol_dis:
+	/* WOL disabled */
+	ATL2_WRITE_REG(hw, REG_WOL_CTRL, 0);
+
+	/* pcie patch */
+	ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
+	ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
+	ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
+	ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
+	ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
+	ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
+
+	atl2_force_ps(hw);
+	hw->phy_configured = false; /* re-init PHY when resume */
+
+	pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+
+suspend_exit:
+	if (netif_running(netdev))
+		atl2_free_irq(adapter);
+
+	pci_disable_device(pdev);
+
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int atl2_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	u32 err;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+
+	err = pci_enable_device(pdev);
+	if (err) {
+		printk(KERN_ERR
+			"atl2: Cannot enable PCI device from suspend\n");
+		return err;
+	}
+
+	pci_set_master(pdev);
+
+	ATL2_READ_REG(&adapter->hw, REG_WOL_CTRL); /* clear WOL status */
+
+	pci_enable_wake(pdev, PCI_D3hot, 0);
+	pci_enable_wake(pdev, PCI_D3cold, 0);
+
+	ATL2_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0);
+
+	if (netif_running(netdev)) {
+		err = atl2_request_irq(adapter);
+		if (err)
+			return err;
+	}
+
+	atl2_reset_hw(&adapter->hw);
+
+	if (netif_running(netdev))
+		atl2_up(adapter);
+
+	netif_device_attach(netdev);
+
+	return 0;
+}
+#endif
+
+static void atl2_shutdown(struct pci_dev *pdev)
+{
+	atl2_suspend(pdev, PMSG_SUSPEND);
+}
+
+static struct pci_driver atl2_driver = {
+	.name     = atl2_driver_name,
+	.id_table = atl2_pci_tbl,
+	.probe    = atl2_probe,
+	.remove   = atl2_remove,
+	/* Power Management Hooks */
+	.suspend  = atl2_suspend,
+#ifdef CONFIG_PM
+	.resume   = atl2_resume,
+#endif
+	.shutdown = atl2_shutdown,
+};
+
+module_pci_driver(atl2_driver);
+
+static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value)
+{
+	struct atl2_adapter *adapter = hw->back;
+	pci_read_config_word(adapter->pdev, reg, value);
+}
+
+static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value)
+{
+	struct atl2_adapter *adapter = hw->back;
+	pci_write_config_word(adapter->pdev, reg, *value);
+}
+
+static int atl2_get_link_ksettings(struct net_device *netdev,
+				   struct ethtool_link_ksettings *cmd)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 supported, advertising;
+
+	supported = (SUPPORTED_10baseT_Half |
+		SUPPORTED_10baseT_Full |
+		SUPPORTED_100baseT_Half |
+		SUPPORTED_100baseT_Full |
+		SUPPORTED_Autoneg |
+		SUPPORTED_TP);
+	advertising = ADVERTISED_TP;
+
+	advertising |= ADVERTISED_Autoneg;
+	advertising |= hw->autoneg_advertised;
+
+	cmd->base.port = PORT_TP;
+	cmd->base.phy_address = 0;
+
+	if (adapter->link_speed != SPEED_0) {
+		cmd->base.speed = adapter->link_speed;
+		if (adapter->link_duplex == FULL_DUPLEX)
+			cmd->base.duplex = DUPLEX_FULL;
+		else
+			cmd->base.duplex = DUPLEX_HALF;
+	} else {
+		cmd->base.speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
+	}
+
+	cmd->base.autoneg = AUTONEG_ENABLE;
+
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						supported);
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
+						advertising);
+
+	return 0;
+}
+
+static int atl2_set_link_ksettings(struct net_device *netdev,
+				   const struct ethtool_link_ksettings *cmd)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 advertising;
+
+	ethtool_convert_link_mode_to_legacy_u32(&advertising,
+						cmd->link_modes.advertising);
+
+	while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags))
+		msleep(1);
+
+	if (cmd->base.autoneg == AUTONEG_ENABLE) {
+#define MY_ADV_MASK	(ADVERTISE_10_HALF | \
+			 ADVERTISE_10_FULL | \
+			 ADVERTISE_100_HALF| \
+			 ADVERTISE_100_FULL)
+
+		if ((advertising & MY_ADV_MASK) == MY_ADV_MASK) {
+			hw->MediaType = MEDIA_TYPE_AUTO_SENSOR;
+			hw->autoneg_advertised =  MY_ADV_MASK;
+		} else if ((advertising & MY_ADV_MASK) == ADVERTISE_100_FULL) {
+			hw->MediaType = MEDIA_TYPE_100M_FULL;
+			hw->autoneg_advertised = ADVERTISE_100_FULL;
+		} else if ((advertising & MY_ADV_MASK) == ADVERTISE_100_HALF) {
+			hw->MediaType = MEDIA_TYPE_100M_HALF;
+			hw->autoneg_advertised = ADVERTISE_100_HALF;
+		} else if ((advertising & MY_ADV_MASK) == ADVERTISE_10_FULL) {
+			hw->MediaType = MEDIA_TYPE_10M_FULL;
+			hw->autoneg_advertised = ADVERTISE_10_FULL;
+		}  else if ((advertising & MY_ADV_MASK) == ADVERTISE_10_HALF) {
+			hw->MediaType = MEDIA_TYPE_10M_HALF;
+			hw->autoneg_advertised = ADVERTISE_10_HALF;
+		} else {
+			clear_bit(__ATL2_RESETTING, &adapter->flags);
+			return -EINVAL;
+		}
+		advertising = hw->autoneg_advertised |
+			ADVERTISED_TP | ADVERTISED_Autoneg;
+	} else {
+		clear_bit(__ATL2_RESETTING, &adapter->flags);
+		return -EINVAL;
+	}
+
+	/* reset the link */
+	if (netif_running(adapter->netdev)) {
+		atl2_down(adapter);
+		atl2_up(adapter);
+	} else
+		atl2_reset_hw(&adapter->hw);
+
+	clear_bit(__ATL2_RESETTING, &adapter->flags);
+	return 0;
+}
+
+static u32 atl2_get_msglevel(struct net_device *netdev)
+{
+	return 0;
+}
+
+/*
+ * It's sane for this to be empty, but we might want to take advantage of this.
+ */
+static void atl2_set_msglevel(struct net_device *netdev, u32 data)
+{
+}
+
+static int atl2_get_regs_len(struct net_device *netdev)
+{
+#define ATL2_REGS_LEN 42
+	return sizeof(u32) * ATL2_REGS_LEN;
+}
+
+static void atl2_get_regs(struct net_device *netdev,
+	struct ethtool_regs *regs, void *p)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 *regs_buff = p;
+	u16 phy_data;
+
+	memset(p, 0, sizeof(u32) * ATL2_REGS_LEN);
+
+	regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
+
+	regs_buff[0]  = ATL2_READ_REG(hw, REG_VPD_CAP);
+	regs_buff[1]  = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
+	regs_buff[2]  = ATL2_READ_REG(hw, REG_SPI_FLASH_CONFIG);
+	regs_buff[3]  = ATL2_READ_REG(hw, REG_TWSI_CTRL);
+	regs_buff[4]  = ATL2_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
+	regs_buff[5]  = ATL2_READ_REG(hw, REG_MASTER_CTRL);
+	regs_buff[6]  = ATL2_READ_REG(hw, REG_MANUAL_TIMER_INIT);
+	regs_buff[7]  = ATL2_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
+	regs_buff[8]  = ATL2_READ_REG(hw, REG_PHY_ENABLE);
+	regs_buff[9]  = ATL2_READ_REG(hw, REG_CMBDISDMA_TIMER);
+	regs_buff[10] = ATL2_READ_REG(hw, REG_IDLE_STATUS);
+	regs_buff[11] = ATL2_READ_REG(hw, REG_MDIO_CTRL);
+	regs_buff[12] = ATL2_READ_REG(hw, REG_SERDES_LOCK);
+	regs_buff[13] = ATL2_READ_REG(hw, REG_MAC_CTRL);
+	regs_buff[14] = ATL2_READ_REG(hw, REG_MAC_IPG_IFG);
+	regs_buff[15] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR);
+	regs_buff[16] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR+4);
+	regs_buff[17] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE);
+	regs_buff[18] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE+4);
+	regs_buff[19] = ATL2_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
+	regs_buff[20] = ATL2_READ_REG(hw, REG_MTU);
+	regs_buff[21] = ATL2_READ_REG(hw, REG_WOL_CTRL);
+	regs_buff[22] = ATL2_READ_REG(hw, REG_SRAM_TXRAM_END);
+	regs_buff[23] = ATL2_READ_REG(hw, REG_DESC_BASE_ADDR_HI);
+	regs_buff[24] = ATL2_READ_REG(hw, REG_TXD_BASE_ADDR_LO);
+	regs_buff[25] = ATL2_READ_REG(hw, REG_TXD_MEM_SIZE);
+	regs_buff[26] = ATL2_READ_REG(hw, REG_TXS_BASE_ADDR_LO);
+	regs_buff[27] = ATL2_READ_REG(hw, REG_TXS_MEM_SIZE);
+	regs_buff[28] = ATL2_READ_REG(hw, REG_RXD_BASE_ADDR_LO);
+	regs_buff[29] = ATL2_READ_REG(hw, REG_RXD_BUF_NUM);
+	regs_buff[30] = ATL2_READ_REG(hw, REG_DMAR);
+	regs_buff[31] = ATL2_READ_REG(hw, REG_TX_CUT_THRESH);
+	regs_buff[32] = ATL2_READ_REG(hw, REG_DMAW);
+	regs_buff[33] = ATL2_READ_REG(hw, REG_PAUSE_ON_TH);
+	regs_buff[34] = ATL2_READ_REG(hw, REG_PAUSE_OFF_TH);
+	regs_buff[35] = ATL2_READ_REG(hw, REG_MB_TXD_WR_IDX);
+	regs_buff[36] = ATL2_READ_REG(hw, REG_MB_RXD_RD_IDX);
+	regs_buff[38] = ATL2_READ_REG(hw, REG_ISR);
+	regs_buff[39] = ATL2_READ_REG(hw, REG_IMR);
+
+	atl2_read_phy_reg(hw, MII_BMCR, &phy_data);
+	regs_buff[40] = (u32)phy_data;
+	atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
+	regs_buff[41] = (u32)phy_data;
+}
+
+static int atl2_get_eeprom_len(struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	if (!atl2_check_eeprom_exist(&adapter->hw))
+		return 512;
+	else
+		return 0;
+}
+
+static int atl2_get_eeprom(struct net_device *netdev,
+	struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 *eeprom_buff;
+	int first_dword, last_dword;
+	int ret_val = 0;
+	int i;
+
+	if (eeprom->len == 0)
+		return -EINVAL;
+
+	if (atl2_check_eeprom_exist(hw))
+		return -EINVAL;
+
+	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
+
+	first_dword = eeprom->offset >> 2;
+	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
+
+	eeprom_buff = kmalloc_array(last_dword - first_dword + 1, sizeof(u32),
+				    GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	for (i = first_dword; i < last_dword; i++) {
+		if (!atl2_read_eeprom(hw, i*4, &(eeprom_buff[i-first_dword]))) {
+			ret_val = -EIO;
+			goto free;
+		}
+	}
+
+	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
+		eeprom->len);
+free:
+	kfree(eeprom_buff);
+
+	return ret_val;
+}
+
+static int atl2_set_eeprom(struct net_device *netdev,
+	struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	struct atl2_hw *hw = &adapter->hw;
+	u32 *eeprom_buff;
+	u32 *ptr;
+	int max_len, first_dword, last_dword, ret_val = 0;
+	int i;
+
+	if (eeprom->len == 0)
+		return -EOPNOTSUPP;
+
+	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
+		return -EFAULT;
+
+	max_len = 512;
+
+	first_dword = eeprom->offset >> 2;
+	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
+	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	ptr = eeprom_buff;
+
+	if (eeprom->offset & 3) {
+		/* need read/modify/write of first changed EEPROM word */
+		/* only the second byte of the word is being modified */
+		if (!atl2_read_eeprom(hw, first_dword*4, &(eeprom_buff[0]))) {
+			ret_val = -EIO;
+			goto out;
+		}
+		ptr++;
+	}
+	if (((eeprom->offset + eeprom->len) & 3)) {
+		/*
+		 * need read/modify/write of last changed EEPROM word
+		 * only the first byte of the word is being modified
+		 */
+		if (!atl2_read_eeprom(hw, last_dword * 4,
+					&(eeprom_buff[last_dword - first_dword]))) {
+			ret_val = -EIO;
+			goto out;
+		}
+	}
+
+	/* Device's eeprom is always little-endian, word addressable */
+	memcpy(ptr, bytes, eeprom->len);
+
+	for (i = 0; i < last_dword - first_dword + 1; i++) {
+		if (!atl2_write_eeprom(hw, ((first_dword+i)*4), eeprom_buff[i])) {
+			ret_val = -EIO;
+			goto out;
+		}
+	}
+ out:
+	kfree(eeprom_buff);
+	return ret_val;
+}
+
+static void atl2_get_drvinfo(struct net_device *netdev,
+	struct ethtool_drvinfo *drvinfo)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	strscpy(drvinfo->driver,  atl2_driver_name, sizeof(drvinfo->driver));
+	strscpy(drvinfo->fw_version, "L2", sizeof(drvinfo->fw_version));
+	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
+		sizeof(drvinfo->bus_info));
+}
+
+static void atl2_get_wol(struct net_device *netdev,
+	struct ethtool_wolinfo *wol)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	wol->supported = WAKE_MAGIC;
+	wol->wolopts = 0;
+
+	if (adapter->wol & ATLX_WUFC_EX)
+		wol->wolopts |= WAKE_UCAST;
+	if (adapter->wol & ATLX_WUFC_MC)
+		wol->wolopts |= WAKE_MCAST;
+	if (adapter->wol & ATLX_WUFC_BC)
+		wol->wolopts |= WAKE_BCAST;
+	if (adapter->wol & ATLX_WUFC_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+	if (adapter->wol & ATLX_WUFC_LNKC)
+		wol->wolopts |= WAKE_PHY;
+}
+
+static int atl2_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
+		return -EOPNOTSUPP;
+
+	if (wol->wolopts & (WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
+		return -EOPNOTSUPP;
+
+	/* these settings will always override what we currently have */
+	adapter->wol = 0;
+
+	if (wol->wolopts & WAKE_MAGIC)
+		adapter->wol |= ATLX_WUFC_MAG;
+	if (wol->wolopts & WAKE_PHY)
+		adapter->wol |= ATLX_WUFC_LNKC;
+
+	return 0;
+}
+
+static int atl2_nway_reset(struct net_device *netdev)
+{
+	struct atl2_adapter *adapter = netdev_priv(netdev);
+	if (netif_running(netdev))
+		atl2_reinit_locked(adapter);
+	return 0;
+}
+
+static const struct ethtool_ops atl2_ethtool_ops = {
+	.get_drvinfo		= atl2_get_drvinfo,
+	.get_regs_len		= atl2_get_regs_len,
+	.get_regs		= atl2_get_regs,
+	.get_wol		= atl2_get_wol,
+	.set_wol		= atl2_set_wol,
+	.get_msglevel		= atl2_get_msglevel,
+	.set_msglevel		= atl2_set_msglevel,
+	.nway_reset		= atl2_nway_reset,
+	.get_link		= ethtool_op_get_link,
+	.get_eeprom_len		= atl2_get_eeprom_len,
+	.get_eeprom		= atl2_get_eeprom,
+	.set_eeprom		= atl2_set_eeprom,
+	.get_link_ksettings	= atl2_get_link_ksettings,
+	.set_link_ksettings	= atl2_set_link_ksettings,
+};
+
+#define LBYTESWAP(a)  ((((a) & 0x00ff00ff) << 8) | \
+	(((a) & 0xff00ff00) >> 8))
+#define LONGSWAP(a)   ((LBYTESWAP(a) << 16) | (LBYTESWAP(a) >> 16))
+#define SHORTSWAP(a)  (((a) << 8) | ((a) >> 8))
+
+/*
+ * Reset the transmit and receive units; mask and clear all interrupts.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * return : 0  or  idle status (if error)
+ */
+static s32 atl2_reset_hw(struct atl2_hw *hw)
+{
+	u32 icr;
+	u16 pci_cfg_cmd_word;
+	int i;
+
+	/* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */
+	atl2_read_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word);
+	if ((pci_cfg_cmd_word &
+		(CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) !=
+		(CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) {
+		pci_cfg_cmd_word |=
+			(CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER);
+		atl2_write_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word);
+	}
+
+	/* Clear Interrupt mask to stop board from generating
+	 * interrupts & Clear any pending interrupt events
+	 */
+	/* FIXME */
+	/* ATL2_WRITE_REG(hw, REG_IMR, 0); */
+	/* ATL2_WRITE_REG(hw, REG_ISR, 0xffffffff); */
+
+	/* Issue Soft Reset to the MAC.  This will reset the chip's
+	 * transmit, receive, DMA.  It will not effect
+	 * the current PCI configuration.  The global reset bit is self-
+	 * clearing, and should clear within a microsecond.
+	 */
+	ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_SOFT_RST);
+	wmb();
+	msleep(1); /* delay about 1ms */
+
+	/* Wait at least 10ms for All module to be Idle */
+	for (i = 0; i < 10; i++) {
+		icr = ATL2_READ_REG(hw, REG_IDLE_STATUS);
+		if (!icr)
+			break;
+		msleep(1); /* delay 1 ms */
+		cpu_relax();
+	}
+
+	if (icr)
+		return icr;
+
+	return 0;
+}
+
+#define CUSTOM_SPI_CS_SETUP        2
+#define CUSTOM_SPI_CLK_HI          2
+#define CUSTOM_SPI_CLK_LO          2
+#define CUSTOM_SPI_CS_HOLD         2
+#define CUSTOM_SPI_CS_HI           3
+
+static struct atl2_spi_flash_dev flash_table[] =
+{
+/* MFR    WRSR  READ  PROGRAM WREN  WRDI  RDSR  RDID  SECTOR_ERASE CHIP_ERASE */
+{"Atmel", 0x0,  0x03, 0x02,   0x06, 0x04, 0x05, 0x15, 0x52,        0x62 },
+{"SST",   0x01, 0x03, 0x02,   0x06, 0x04, 0x05, 0x90, 0x20,        0x60 },
+{"ST",    0x01, 0x03, 0x02,   0x06, 0x04, 0x05, 0xAB, 0xD8,        0xC7 },
+};
+
+static bool atl2_spi_read(struct atl2_hw *hw, u32 addr, u32 *buf)
+{
+	int i;
+	u32 value;
+
+	ATL2_WRITE_REG(hw, REG_SPI_DATA, 0);
+	ATL2_WRITE_REG(hw, REG_SPI_ADDR, addr);
+
+	value = SPI_FLASH_CTRL_WAIT_READY |
+		(CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
+			SPI_FLASH_CTRL_CS_SETUP_SHIFT |
+		(CUSTOM_SPI_CLK_HI & SPI_FLASH_CTRL_CLK_HI_MASK) <<
+			SPI_FLASH_CTRL_CLK_HI_SHIFT |
+		(CUSTOM_SPI_CLK_LO & SPI_FLASH_CTRL_CLK_LO_MASK) <<
+			SPI_FLASH_CTRL_CLK_LO_SHIFT |
+		(CUSTOM_SPI_CS_HOLD & SPI_FLASH_CTRL_CS_HOLD_MASK) <<
+			SPI_FLASH_CTRL_CS_HOLD_SHIFT |
+		(CUSTOM_SPI_CS_HI & SPI_FLASH_CTRL_CS_HI_MASK) <<
+			SPI_FLASH_CTRL_CS_HI_SHIFT |
+		(0x1 & SPI_FLASH_CTRL_INS_MASK) << SPI_FLASH_CTRL_INS_SHIFT;
+
+	ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
+
+	value |= SPI_FLASH_CTRL_START;
+
+	ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
+
+	for (i = 0; i < 10; i++) {
+		msleep(1);
+		value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
+		if (!(value & SPI_FLASH_CTRL_START))
+			break;
+	}
+
+	if (value & SPI_FLASH_CTRL_START)
+		return false;
+
+	*buf = ATL2_READ_REG(hw, REG_SPI_DATA);
+
+	return true;
+}
+
+/*
+ * get_permanent_address
+ * return 0 if get valid mac address,
+ */
+static int get_permanent_address(struct atl2_hw *hw)
+{
+	u32 Addr[2];
+	u32 i, Control;
+	u16 Register;
+	u8  EthAddr[ETH_ALEN];
+	bool KeyValid;
+
+	if (is_valid_ether_addr(hw->perm_mac_addr))
+		return 0;
+
+	Addr[0] = 0;
+	Addr[1] = 0;
+
+	if (!atl2_check_eeprom_exist(hw)) { /* eeprom exists */
+		Register = 0;
+		KeyValid = false;
+
+		/* Read out all EEPROM content */
+		i = 0;
+		while (1) {
+			if (atl2_read_eeprom(hw, i + 0x100, &Control)) {
+				if (KeyValid) {
+					if (Register == REG_MAC_STA_ADDR)
+						Addr[0] = Control;
+					else if (Register ==
+						(REG_MAC_STA_ADDR + 4))
+						Addr[1] = Control;
+					KeyValid = false;
+				} else if ((Control & 0xff) == 0x5A) {
+					KeyValid = true;
+					Register = (u16) (Control >> 16);
+				} else {
+			/* assume data end while encount an invalid KEYWORD */
+					break;
+				}
+			} else {
+				break; /* read error */
+			}
+			i += 4;
+		}
+
+		*(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
+		*(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]);
+
+		if (is_valid_ether_addr(EthAddr)) {
+			memcpy(hw->perm_mac_addr, EthAddr, ETH_ALEN);
+			return 0;
+		}
+		return 1;
+	}
+
+	/* see if SPI flash exists? */
+	Addr[0] = 0;
+	Addr[1] = 0;
+	Register = 0;
+	KeyValid = false;
+	i = 0;
+	while (1) {
+		if (atl2_spi_read(hw, i + 0x1f000, &Control)) {
+			if (KeyValid) {
+				if (Register == REG_MAC_STA_ADDR)
+					Addr[0] = Control;
+				else if (Register == (REG_MAC_STA_ADDR + 4))
+					Addr[1] = Control;
+				KeyValid = false;
+			} else if ((Control & 0xff) == 0x5A) {
+				KeyValid = true;
+				Register = (u16) (Control >> 16);
+			} else {
+				break; /* data end */
+			}
+		} else {
+			break; /* read error */
+		}
+		i += 4;
+	}
+
+	*(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
+	*(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *)&Addr[1]);
+	if (is_valid_ether_addr(EthAddr)) {
+		memcpy(hw->perm_mac_addr, EthAddr, ETH_ALEN);
+		return 0;
+	}
+	/* maybe MAC-address is from BIOS */
+	Addr[0] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR);
+	Addr[1] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR + 4);
+	*(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
+	*(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]);
+
+	if (is_valid_ether_addr(EthAddr)) {
+		memcpy(hw->perm_mac_addr, EthAddr, ETH_ALEN);
+		return 0;
+	}
+
+	return 1;
+}
+
+/*
+ * Reads the adapter's MAC address from the EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ */
+static s32 atl2_read_mac_addr(struct atl2_hw *hw)
+{
+	if (get_permanent_address(hw)) {
+		/* for test */
+		/* FIXME: shouldn't we use eth_random_addr() here? */
+		hw->perm_mac_addr[0] = 0x00;
+		hw->perm_mac_addr[1] = 0x13;
+		hw->perm_mac_addr[2] = 0x74;
+		hw->perm_mac_addr[3] = 0x00;
+		hw->perm_mac_addr[4] = 0x5c;
+		hw->perm_mac_addr[5] = 0x38;
+	}
+
+	memcpy(hw->mac_addr, hw->perm_mac_addr, ETH_ALEN);
+
+	return 0;
+}
+
+/*
+ * Hashes an address to determine its location in the multicast table
+ *
+ * hw - Struct containing variables accessed by shared code
+ * mc_addr - the multicast address to hash
+ *
+ * atl2_hash_mc_addr
+ *  purpose
+ *      set hash value for a multicast address
+ *      hash calcu processing :
+ *          1. calcu 32bit CRC for multicast address
+ *          2. reverse crc with MSB to LSB
+ */
+static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr)
+{
+	u32 crc32, value;
+	int i;
+
+	value = 0;
+	crc32 = ether_crc_le(6, mc_addr);
+
+	for (i = 0; i < 32; i++)
+		value |= (((crc32 >> i) & 1) << (31 - i));
+
+	return value;
+}
+
+/*
+ * Sets the bit in the multicast table corresponding to the hash value.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * hash_value - Multicast address hash value
+ */
+static void atl2_hash_set(struct atl2_hw *hw, u32 hash_value)
+{
+	u32 hash_bit, hash_reg;
+	u32 mta;
+
+	/* The HASH Table  is a register array of 2 32-bit registers.
+	 * It is treated like an array of 64 bits.  We want to set
+	 * bit BitArray[hash_value]. So we figure out what register
+	 * the bit is in, read it, OR in the new bit, then write
+	 * back the new value.  The register is determined by the
+	 * upper 7 bits of the hash value and the bit within that
+	 * register are determined by the lower 5 bits of the value.
+	 */
+	hash_reg = (hash_value >> 31) & 0x1;
+	hash_bit = (hash_value >> 26) & 0x1F;
+
+	mta = ATL2_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg);
+
+	mta |= (1 << hash_bit);
+
+	ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta);
+}
+
+/*
+ * atl2_init_pcie - init PCIE module
+ */
+static void atl2_init_pcie(struct atl2_hw *hw)
+{
+    u32 value;
+    value = LTSSM_TEST_MODE_DEF;
+    ATL2_WRITE_REG(hw, REG_LTSSM_TEST_MODE, value);
+
+    value = PCIE_DLL_TX_CTRL1_DEF;
+    ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, value);
+}
+
+static void atl2_init_flash_opcode(struct atl2_hw *hw)
+{
+	if (hw->flash_vendor >= ARRAY_SIZE(flash_table))
+		hw->flash_vendor = 0; /* ATMEL */
+
+	/* Init OP table */
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_PROGRAM,
+		flash_table[hw->flash_vendor].cmdPROGRAM);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_SC_ERASE,
+		flash_table[hw->flash_vendor].cmdSECTOR_ERASE);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_CHIP_ERASE,
+		flash_table[hw->flash_vendor].cmdCHIP_ERASE);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDID,
+		flash_table[hw->flash_vendor].cmdRDID);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WREN,
+		flash_table[hw->flash_vendor].cmdWREN);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDSR,
+		flash_table[hw->flash_vendor].cmdRDSR);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WRSR,
+		flash_table[hw->flash_vendor].cmdWRSR);
+	ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_READ,
+		flash_table[hw->flash_vendor].cmdREAD);
+}
+
+/********************************************************************
+* Performs basic configuration of the adapter.
+*
+* hw - Struct containing variables accessed by shared code
+* Assumes that the controller has previously been reset and is in a
+* post-reset uninitialized state. Initializes multicast table,
+* and  Calls routines to setup link
+* Leaves the transmit and receive units disabled and uninitialized.
+********************************************************************/
+static s32 atl2_init_hw(struct atl2_hw *hw)
+{
+	u32 ret_val = 0;
+
+	atl2_init_pcie(hw);
+
+	/* Zero out the Multicast HASH table */
+	/* clear the old settings from the multicast hash table */
+	ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
+	ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
+
+	atl2_init_flash_opcode(hw);
+
+	ret_val = atl2_phy_init(hw);
+
+	return ret_val;
+}
+
+/*
+ * Detects the current speed and duplex settings of the hardware.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * speed - Speed of the connection
+ * duplex - Duplex setting of the connection
+ */
+static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed,
+	u16 *duplex)
+{
+	s32 ret_val;
+	u16 phy_data;
+
+	/* Read PHY Specific Status Register (17) */
+	ret_val = atl2_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data);
+	if (ret_val)
+		return ret_val;
+
+	if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED))
+		return ATLX_ERR_PHY_RES;
+
+	switch (phy_data & MII_ATLX_PSSR_SPEED) {
+	case MII_ATLX_PSSR_100MBS:
+		*speed = SPEED_100;
+		break;
+	case MII_ATLX_PSSR_10MBS:
+		*speed = SPEED_10;
+		break;
+	default:
+		return ATLX_ERR_PHY_SPEED;
+	}
+
+	if (phy_data & MII_ATLX_PSSR_DPLX)
+		*duplex = FULL_DUPLEX;
+	else
+		*duplex = HALF_DUPLEX;
+
+	return 0;
+}
+
+/*
+ * Reads the value from a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to read
+ */
+static s32 atl2_read_phy_reg(struct atl2_hw *hw, u16 reg_addr, u16 *phy_data)
+{
+	u32 val;
+	int i;
+
+	val = ((u32)(reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
+		MDIO_START |
+		MDIO_SUP_PREAMBLE |
+		MDIO_RW |
+		MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
+	ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val);
+
+	wmb();
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ATL2_READ_REG(hw, REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+		wmb();
+	}
+	if (!(val & (MDIO_START | MDIO_BUSY))) {
+		*phy_data = (u16)val;
+		return 0;
+	}
+
+	return ATLX_ERR_PHY;
+}
+
+/*
+ * Writes a value to a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to write
+ * data - data to write to the PHY
+ */
+static s32 atl2_write_phy_reg(struct atl2_hw *hw, u32 reg_addr, u16 phy_data)
+{
+	int i;
+	u32 val;
+
+	val = ((u32)(phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
+		(reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
+		MDIO_SUP_PREAMBLE |
+		MDIO_START |
+		MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
+	ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val);
+
+	wmb();
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ATL2_READ_REG(hw, REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+
+		wmb();
+	}
+
+	if (!(val & (MDIO_START | MDIO_BUSY)))
+		return 0;
+
+	return ATLX_ERR_PHY;
+}
+
+/*
+ * Configures PHY autoneg and flow control advertisement settings
+ *
+ * hw - Struct containing variables accessed by shared code
+ */
+static s32 atl2_phy_setup_autoneg_adv(struct atl2_hw *hw)
+{
+	s16 mii_autoneg_adv_reg;
+
+	/* Read the MII Auto-Neg Advertisement Register (Address 4). */
+	mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
+
+	/* Need to parse autoneg_advertised  and set up
+	 * the appropriate PHY registers.  First we will parse for
+	 * autoneg_advertised software override.  Since we can advertise
+	 * a plethora of combinations, we need to check each bit
+	 * individually.
+	 */
+
+	/* First we clear all the 10/100 mb speed bits in the Auto-Neg
+	 * Advertisement Register (Address 4) and the 1000 mb speed bits in
+	 * the  1000Base-T Control Register (Address 9). */
+	mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
+
+	/* Need to parse MediaType and setup the
+	 * appropriate PHY registers. */
+	switch (hw->MediaType) {
+	case MEDIA_TYPE_AUTO_SENSOR:
+		mii_autoneg_adv_reg |=
+			(MII_AR_10T_HD_CAPS |
+			MII_AR_10T_FD_CAPS  |
+			MII_AR_100TX_HD_CAPS|
+			MII_AR_100TX_FD_CAPS);
+		hw->autoneg_advertised =
+			ADVERTISE_10_HALF |
+			ADVERTISE_10_FULL |
+			ADVERTISE_100_HALF|
+			ADVERTISE_100_FULL;
+		break;
+	case MEDIA_TYPE_100M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
+		hw->autoneg_advertised = ADVERTISE_100_FULL;
+		break;
+	case MEDIA_TYPE_100M_HALF:
+		mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
+		hw->autoneg_advertised = ADVERTISE_100_HALF;
+		break;
+	case MEDIA_TYPE_10M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
+		hw->autoneg_advertised = ADVERTISE_10_FULL;
+		break;
+	default:
+		mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
+		hw->autoneg_advertised = ADVERTISE_10_HALF;
+		break;
+	}
+
+	/* flow control fixed to enable all */
+	mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
+
+	hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
+
+	return atl2_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
+}
+
+/*
+ * Resets the PHY and make all config validate
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
+ */
+static s32 atl2_phy_commit(struct atl2_hw *hw)
+{
+	s32 ret_val;
+	u16 phy_data;
+
+	phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG;
+	ret_val = atl2_write_phy_reg(hw, MII_BMCR, phy_data);
+	if (ret_val) {
+		u32 val;
+		int i;
+		/* pcie serdes link may be down ! */
+		for (i = 0; i < 25; i++) {
+			msleep(1);
+			val = ATL2_READ_REG(hw, REG_MDIO_CTRL);
+			if (!(val & (MDIO_START | MDIO_BUSY)))
+				break;
+		}
+
+		if (0 != (val & (MDIO_START | MDIO_BUSY))) {
+			printk(KERN_ERR "atl2: PCIe link down for at least 25ms !\n");
+			return ret_val;
+		}
+	}
+	return 0;
+}
+
+static s32 atl2_phy_init(struct atl2_hw *hw)
+{
+	s32 ret_val;
+	u16 phy_val;
+
+	if (hw->phy_configured)
+		return 0;
+
+	/* Enable PHY */
+	ATL2_WRITE_REGW(hw, REG_PHY_ENABLE, 1);
+	ATL2_WRITE_FLUSH(hw);
+	msleep(1);
+
+	/* check if the PHY is in powersaving mode */
+	atl2_write_phy_reg(hw, MII_DBG_ADDR, 0);
+	atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val);
+
+	/* 024E / 124E 0r 0274 / 1274 ? */
+	if (phy_val & 0x1000) {
+		phy_val &= ~0x1000;
+		atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val);
+	}
+
+	msleep(1);
+
+	/*Enable PHY LinkChange Interrupt */
+	ret_val = atl2_write_phy_reg(hw, 18, 0xC00);
+	if (ret_val)
+		return ret_val;
+
+	/* setup AutoNeg parameters */
+	ret_val = atl2_phy_setup_autoneg_adv(hw);
+	if (ret_val)
+		return ret_val;
+
+	/* SW.Reset & En-Auto-Neg to restart Auto-Neg */
+	ret_val = atl2_phy_commit(hw);
+	if (ret_val)
+		return ret_val;
+
+	hw->phy_configured = true;
+
+	return ret_val;
+}
+
+static void atl2_set_mac_addr(struct atl2_hw *hw)
+{
+	u32 value;
+	/* 00-0B-6A-F6-00-DC
+	 * 0:  6AF600DC   1: 000B
+	 * low dword */
+	value = (((u32)hw->mac_addr[2]) << 24) |
+		(((u32)hw->mac_addr[3]) << 16) |
+		(((u32)hw->mac_addr[4]) << 8)  |
+		(((u32)hw->mac_addr[5]));
+	ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value);
+	/* hight dword */
+	value = (((u32)hw->mac_addr[0]) << 8) |
+		(((u32)hw->mac_addr[1]));
+	ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value);
+}
+
+/*
+ * check_eeprom_exist
+ * return 0 if eeprom exist
+ */
+static int atl2_check_eeprom_exist(struct atl2_hw *hw)
+{
+	u32 value;
+
+	value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
+	if (value & SPI_FLASH_CTRL_EN_VPD) {
+		value &= ~SPI_FLASH_CTRL_EN_VPD;
+		ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
+	}
+	value = ATL2_READ_REGW(hw, REG_PCIE_CAP_LIST);
+	return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
+}
+
+/* FIXME: This doesn't look right. -- CHS */
+static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value)
+{
+	return true;
+}
+
+static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue)
+{
+	int i;
+	u32    Control;
+
+	if (Offset & 0x3)
+		return false; /* address do not align */
+
+	ATL2_WRITE_REG(hw, REG_VPD_DATA, 0);
+	Control = (Offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
+	ATL2_WRITE_REG(hw, REG_VPD_CAP, Control);
+
+	for (i = 0; i < 10; i++) {
+		msleep(2);
+		Control = ATL2_READ_REG(hw, REG_VPD_CAP);
+		if (Control & VPD_CAP_VPD_FLAG)
+			break;
+	}
+
+	if (Control & VPD_CAP_VPD_FLAG) {
+		*pValue = ATL2_READ_REG(hw, REG_VPD_DATA);
+		return true;
+	}
+	return false; /* timeout */
+}
+
+static void atl2_force_ps(struct atl2_hw *hw)
+{
+	u16 phy_val;
+
+	atl2_write_phy_reg(hw, MII_DBG_ADDR, 0);
+	atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val);
+	atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val | 0x1000);
+
+	atl2_write_phy_reg(hw, MII_DBG_ADDR, 2);
+	atl2_write_phy_reg(hw, MII_DBG_DATA, 0x3000);
+	atl2_write_phy_reg(hw, MII_DBG_ADDR, 3);
+	atl2_write_phy_reg(hw, MII_DBG_DATA, 0);
+}
+
+/* This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+#define ATL2_MAX_NIC 4
+
+#define OPTION_UNSET    -1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+/* All parameters are treated the same, as an integer array of values.
+ * This macro just reduces the need to repeat the same declaration code
+ * over and over (plus this helps to avoid typo bugs).
+ */
+#define ATL2_PARAM_INIT {[0 ... ATL2_MAX_NIC] = OPTION_UNSET}
+#ifndef module_param_array
+/* Module Parameters are always initialized to -1, so that the driver
+ * can tell the difference between no user specified value or the
+ * user asking for the default value.
+ * The true default values are loaded in when atl2_check_options is called.
+ *
+ * This is a GCC extension to ANSI C.
+ * See the item "Labeled Elements in Initializers" in the section
+ * "Extensions to the C Language Family" of the GCC documentation.
+ */
+
+#define ATL2_PARAM(X, desc) \
+    static const int X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
+    MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \
+    MODULE_PARM_DESC(X, desc);
+#else
+#define ATL2_PARAM(X, desc) \
+    static int X[ATL2_MAX_NIC+1] = ATL2_PARAM_INIT; \
+    static unsigned int num_##X; \
+    module_param_array_named(X, X, int, &num_##X, 0); \
+    MODULE_PARM_DESC(X, desc);
+#endif
+
+/*
+ * Transmit Memory Size
+ * Valid Range: 64-2048
+ * Default Value: 128
+ */
+#define ATL2_MIN_TX_MEMSIZE		4	/* 4KB */
+#define ATL2_MAX_TX_MEMSIZE		64	/* 64KB */
+#define ATL2_DEFAULT_TX_MEMSIZE		8	/* 8KB */
+ATL2_PARAM(TxMemSize, "Bytes of Transmit Memory");
+
+/*
+ * Receive Memory Block Count
+ * Valid Range: 16-512
+ * Default Value: 128
+ */
+#define ATL2_MIN_RXD_COUNT		16
+#define ATL2_MAX_RXD_COUNT		512
+#define ATL2_DEFAULT_RXD_COUNT		64
+ATL2_PARAM(RxMemBlock, "Number of receive memory block");
+
+/*
+ * User Specified MediaType Override
+ *
+ * Valid Range: 0-5
+ *  - 0    - auto-negotiate at all supported speeds
+ *  - 1    - only link at 1000Mbps Full Duplex
+ *  - 2    - only link at 100Mbps Full Duplex
+ *  - 3    - only link at 100Mbps Half Duplex
+ *  - 4    - only link at 10Mbps Full Duplex
+ *  - 5    - only link at 10Mbps Half Duplex
+ * Default Value: 0
+ */
+ATL2_PARAM(MediaType, "MediaType Select");
+
+/*
+ * Interrupt Moderate Timer in units of 2048 ns (~2 us)
+ * Valid Range: 10-65535
+ * Default Value: 45000(90ms)
+ */
+#define INT_MOD_DEFAULT_CNT	100 /* 200us */
+#define INT_MOD_MAX_CNT		65000
+#define INT_MOD_MIN_CNT		50
+ATL2_PARAM(IntModTimer, "Interrupt Moderator Timer");
+
+/*
+ * FlashVendor
+ * Valid Range: 0-2
+ * 0 - Atmel
+ * 1 - SST
+ * 2 - ST
+ */
+ATL2_PARAM(FlashVendor, "SPI Flash Vendor");
+
+#define AUTONEG_ADV_DEFAULT	0x2F
+#define AUTONEG_ADV_MASK	0x2F
+#define FLOW_CONTROL_DEFAULT	FLOW_CONTROL_FULL
+
+#define FLASH_VENDOR_DEFAULT	0
+#define FLASH_VENDOR_MIN	0
+#define FLASH_VENDOR_MAX	2
+
+struct atl2_option {
+	enum { enable_option, range_option, list_option } type;
+	char *name;
+	char *err;
+	int  def;
+	union {
+		struct { /* range_option info */
+			int min;
+			int max;
+		} r;
+		struct { /* list_option info */
+			int nr;
+			struct atl2_opt_list { int i; char *str; } *p;
+		} l;
+	} arg;
+};
+
+static int atl2_validate_option(int *value, struct atl2_option *opt)
+{
+	int i;
+	struct atl2_opt_list *ent;
+
+	if (*value == OPTION_UNSET) {
+		*value = opt->def;
+		return 0;
+	}
+
+	switch (opt->type) {
+	case enable_option:
+		switch (*value) {
+		case OPTION_ENABLED:
+			printk(KERN_INFO "%s Enabled\n", opt->name);
+			return 0;
+		case OPTION_DISABLED:
+			printk(KERN_INFO "%s Disabled\n", opt->name);
+			return 0;
+		}
+		break;
+	case range_option:
+		if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+			printk(KERN_INFO "%s set to %i\n", opt->name, *value);
+			return 0;
+		}
+		break;
+	case list_option:
+		for (i = 0; i < opt->arg.l.nr; i++) {
+			ent = &opt->arg.l.p[i];
+			if (*value == ent->i) {
+				if (ent->str[0] != '\0')
+					printk(KERN_INFO "%s\n", ent->str);
+				return 0;
+			}
+		}
+		break;
+	default:
+		BUG();
+	}
+
+	printk(KERN_INFO "Invalid %s specified (%i) %s\n",
+		opt->name, *value, opt->err);
+	*value = opt->def;
+	return -1;
+}
+
+/**
+ * atl2_check_options - Range Checking for Command Line Parameters
+ * @adapter: board private structure
+ *
+ * This routine checks all command line parameters for valid user
+ * input.  If an invalid value is given, or if no user specified
+ * value exists, a default value is used.  The final value is stored
+ * in a variable in the adapter structure.
+ */
+static void atl2_check_options(struct atl2_adapter *adapter)
+{
+	int val;
+	struct atl2_option opt;
+	int bd = adapter->bd_number;
+	if (bd >= ATL2_MAX_NIC) {
+		printk(KERN_NOTICE "Warning: no configuration for board #%i\n",
+			bd);
+		printk(KERN_NOTICE "Using defaults for all values\n");
+#ifndef module_param_array
+		bd = ATL2_MAX_NIC;
+#endif
+	}
+
+	/* Bytes of Transmit Memory */
+	opt.type = range_option;
+	opt.name = "Bytes of Transmit Memory";
+	opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_TX_MEMSIZE);
+	opt.def = ATL2_DEFAULT_TX_MEMSIZE;
+	opt.arg.r.min = ATL2_MIN_TX_MEMSIZE;
+	opt.arg.r.max = ATL2_MAX_TX_MEMSIZE;
+#ifdef module_param_array
+	if (num_TxMemSize > bd) {
+#endif
+		val = TxMemSize[bd];
+		atl2_validate_option(&val, &opt);
+		adapter->txd_ring_size = ((u32) val) * 1024;
+#ifdef module_param_array
+	} else
+		adapter->txd_ring_size = ((u32)opt.def) * 1024;
+#endif
+	/* txs ring size: */
+	adapter->txs_ring_size = adapter->txd_ring_size / 128;
+	if (adapter->txs_ring_size > 160)
+		adapter->txs_ring_size = 160;
+
+	/* Receive Memory Block Count */
+	opt.type = range_option;
+	opt.name = "Number of receive memory block";
+	opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_RXD_COUNT);
+	opt.def = ATL2_DEFAULT_RXD_COUNT;
+	opt.arg.r.min = ATL2_MIN_RXD_COUNT;
+	opt.arg.r.max = ATL2_MAX_RXD_COUNT;
+#ifdef module_param_array
+	if (num_RxMemBlock > bd) {
+#endif
+		val = RxMemBlock[bd];
+		atl2_validate_option(&val, &opt);
+		adapter->rxd_ring_size = (u32)val;
+		/* FIXME */
+		/* ((u16)val)&~1; */	/* even number */
+#ifdef module_param_array
+	} else
+		adapter->rxd_ring_size = (u32)opt.def;
+#endif
+	/* init RXD Flow control value */
+	adapter->hw.fc_rxd_hi = (adapter->rxd_ring_size / 8) * 7;
+	adapter->hw.fc_rxd_lo = (ATL2_MIN_RXD_COUNT / 8) >
+		(adapter->rxd_ring_size / 12) ? (ATL2_MIN_RXD_COUNT / 8) :
+		(adapter->rxd_ring_size / 12);
+
+	/* Interrupt Moderate Timer */
+	opt.type = range_option;
+	opt.name = "Interrupt Moderate Timer";
+	opt.err = "using default of " __MODULE_STRING(INT_MOD_DEFAULT_CNT);
+	opt.def = INT_MOD_DEFAULT_CNT;
+	opt.arg.r.min = INT_MOD_MIN_CNT;
+	opt.arg.r.max = INT_MOD_MAX_CNT;
+#ifdef module_param_array
+	if (num_IntModTimer > bd) {
+#endif
+		val = IntModTimer[bd];
+		atl2_validate_option(&val, &opt);
+		adapter->imt = (u16) val;
+#ifdef module_param_array
+	} else
+		adapter->imt = (u16)(opt.def);
+#endif
+	/* Flash Vendor */
+	opt.type = range_option;
+	opt.name = "SPI Flash Vendor";
+	opt.err = "using default of " __MODULE_STRING(FLASH_VENDOR_DEFAULT);
+	opt.def = FLASH_VENDOR_DEFAULT;
+	opt.arg.r.min = FLASH_VENDOR_MIN;
+	opt.arg.r.max = FLASH_VENDOR_MAX;
+#ifdef module_param_array
+	if (num_FlashVendor > bd) {
+#endif
+		val = FlashVendor[bd];
+		atl2_validate_option(&val, &opt);
+		adapter->hw.flash_vendor = (u8) val;
+#ifdef module_param_array
+	} else
+		adapter->hw.flash_vendor = (u8)(opt.def);
+#endif
+	/* MediaType */
+	opt.type = range_option;
+	opt.name = "Speed/Duplex Selection";
+	opt.err = "using default of " __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR);
+	opt.def = MEDIA_TYPE_AUTO_SENSOR;
+	opt.arg.r.min = MEDIA_TYPE_AUTO_SENSOR;
+	opt.arg.r.max = MEDIA_TYPE_10M_HALF;
+#ifdef module_param_array
+	if (num_MediaType > bd) {
+#endif
+		val = MediaType[bd];
+		atl2_validate_option(&val, &opt);
+		adapter->hw.MediaType = (u16) val;
+#ifdef module_param_array
+	} else
+		adapter->hw.MediaType = (u16)(opt.def);
+#endif
+}
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.h b/drivers/net/ethernet/atheros/atlx/atl2.h
new file mode 100644
index 0000000000..d97613bd15
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atl2.h
@@ -0,0 +1,508 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* atl2.h -- atl2 driver definitions
+ *
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ * Copyright(c) 2006 xiong huang <xiong.huang@atheros.com>
+ * Copyright(c) 2007 Chris Snook <csnook@redhat.com>
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ */
+
+#ifndef _ATL2_H_
+#define _ATL2_H_
+
+#include <linux/atomic.h>
+#include <linux/netdevice.h>
+
+#ifndef _ATL2_HW_H_
+#define _ATL2_HW_H_
+
+#ifndef _ATL2_OSDEP_H_
+#define _ATL2_OSDEP_H_
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/if_ether.h>
+
+#include "atlx.h"
+
+#ifdef ETHTOOL_OPS_COMPAT
+int ethtool_ioctl(struct ifreq *ifr);
+#endif
+
+#define PCI_COMMAND_REGISTER	PCI_COMMAND
+#define CMD_MEM_WRT_INVALIDATE	PCI_COMMAND_INVALIDATE
+
+#define ATL2_WRITE_REG(a, reg, value) (iowrite32((value), \
+	((a)->hw_addr + (reg))))
+
+#define ATL2_WRITE_FLUSH(a) (ioread32((a)->hw_addr))
+
+#define ATL2_READ_REG(a, reg) (ioread32((a)->hw_addr + (reg)))
+
+#define ATL2_WRITE_REGB(a, reg, value) (iowrite8((value), \
+	((a)->hw_addr + (reg))))
+
+#define ATL2_READ_REGB(a, reg) (ioread8((a)->hw_addr + (reg)))
+
+#define ATL2_WRITE_REGW(a, reg, value) (iowrite16((value), \
+	((a)->hw_addr + (reg))))
+
+#define ATL2_READ_REGW(a, reg) (ioread16((a)->hw_addr + (reg)))
+
+#define ATL2_WRITE_REG_ARRAY(a, reg, offset, value) \
+	(iowrite32((value), (((a)->hw_addr + (reg)) + ((offset) << 2))))
+
+#define ATL2_READ_REG_ARRAY(a, reg, offset) \
+	(ioread32(((a)->hw_addr + (reg)) + ((offset) << 2)))
+
+#endif /* _ATL2_OSDEP_H_ */
+
+struct atl2_adapter;
+struct atl2_hw;
+
+/* function prototype */
+static s32 atl2_reset_hw(struct atl2_hw *hw);
+static s32 atl2_read_mac_addr(struct atl2_hw *hw);
+static s32 atl2_init_hw(struct atl2_hw *hw);
+static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed,
+	u16 *duplex);
+static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr);
+static void atl2_hash_set(struct atl2_hw *hw, u32 hash_value);
+static s32 atl2_read_phy_reg(struct atl2_hw *hw, u16 reg_addr, u16 *phy_data);
+static s32 atl2_write_phy_reg(struct atl2_hw *hw, u32 reg_addr, u16 phy_data);
+static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
+static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
+static void atl2_set_mac_addr(struct atl2_hw *hw);
+static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue);
+static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value);
+static s32 atl2_phy_init(struct atl2_hw *hw);
+static int atl2_check_eeprom_exist(struct atl2_hw *hw);
+static void atl2_force_ps(struct atl2_hw *hw);
+
+/* register definition */
+
+/* Block IDLE Status Register */
+#define IDLE_STATUS_RXMAC	1	/* 1: RXMAC is non-IDLE */
+#define IDLE_STATUS_TXMAC	2	/* 1: TXMAC is non-IDLE */
+#define IDLE_STATUS_DMAR	8	/* 1: DMAR is non-IDLE */
+#define IDLE_STATUS_DMAW	4	/* 1: DMAW is non-IDLE */
+
+/* MDIO Control Register */
+#define MDIO_WAIT_TIMES		10
+
+/* MAC Control Register */
+#define MAC_CTRL_DBG_TX_BKPRESURE	0x100000	/* 1: TX max backoff */
+#define MAC_CTRL_MACLP_CLK_PHY		0x8000000	/* 1: 25MHz from phy */
+#define MAC_CTRL_HALF_LEFT_BUF_SHIFT	28
+#define MAC_CTRL_HALF_LEFT_BUF_MASK	0xF		/* MAC retry buf x32B */
+
+/* Internal SRAM Partition Register */
+#define REG_SRAM_TXRAM_END	0x1500	/* Internal tail address of TXRAM
+					 * default: 2byte*1024 */
+#define REG_SRAM_RXRAM_END	0x1502	/* Internal tail address of RXRAM
+					 * default: 2byte*1024 */
+
+/* Descriptor Control register */
+#define REG_TXD_BASE_ADDR_LO	0x1544	/* The base address of the Transmit
+					 * Data Mem low 32-bit(dword align) */
+#define REG_TXD_MEM_SIZE	0x1548	/* Transmit Data Memory size(by
+					 * double word , max 256KB) */
+#define REG_TXS_BASE_ADDR_LO	0x154C	/* The base address of the Transmit
+					 * Status Memory low 32-bit(dword word
+					 * align) */
+#define REG_TXS_MEM_SIZE	0x1550	/* double word unit, max 4*2047
+					 * bytes. */
+#define REG_RXD_BASE_ADDR_LO	0x1554	/* The base address of the Transmit
+					 * Status Memory low 32-bit(unit 8
+					 * bytes) */
+#define REG_RXD_BUF_NUM		0x1558	/* Receive Data & Status Memory buffer
+					 * number (unit 1536bytes, max
+					 * 1536*2047) */
+
+/* DMAR Control Register */
+#define REG_DMAR	0x1580
+#define     DMAR_EN	0x1	/* 1: Enable DMAR */
+
+/* TX Cur-Through (early tx threshold) Control Register */
+#define REG_TX_CUT_THRESH	0x1590	/* TxMac begin transmit packet
+					 * threshold(unit word) */
+
+/* DMAW Control Register */
+#define REG_DMAW	0x15A0
+#define     DMAW_EN	0x1
+
+/* Flow control register */
+#define REG_PAUSE_ON_TH		0x15A8	/* RXD high watermark of overflow
+					 * threshold configuration register */
+#define REG_PAUSE_OFF_TH	0x15AA	/* RXD lower watermark of overflow
+					 * threshold configuration register */
+
+/* Mailbox Register */
+#define REG_MB_TXD_WR_IDX	0x15f0	/* double word align */
+#define REG_MB_RXD_RD_IDX	0x15F4	/* RXD Read index (unit: 1536byets) */
+
+/* Interrupt Status Register */
+#define ISR_TIMER	1	/* Interrupt when Timer counts down to zero */
+#define ISR_MANUAL	2	/* Software manual interrupt, for debug. Set
+				 * when SW_MAN_INT_EN is set in Table 51
+				 * Selene Master Control Register
+				 * (Offset 0x1400). */
+#define ISR_RXF_OV	4	/* RXF overflow interrupt */
+#define ISR_TXF_UR	8	/* TXF underrun interrupt */
+#define ISR_TXS_OV	0x10	/* Internal transmit status buffer full
+				 * interrupt */
+#define ISR_RXS_OV	0x20	/* Internal receive status buffer full
+				 * interrupt */
+#define ISR_LINK_CHG	0x40	/* Link Status Change Interrupt */
+#define ISR_HOST_TXD_UR	0x80
+#define ISR_HOST_RXD_OV	0x100	/* Host rx data memory full , one pulse */
+#define ISR_DMAR_TO_RST	0x200	/* DMAR op timeout interrupt. SW should
+				 * do Reset */
+#define ISR_DMAW_TO_RST	0x400
+#define ISR_PHY		0x800	/* phy interrupt */
+#define ISR_TS_UPDATE	0x10000	/* interrupt after new tx pkt status written
+				 * to host */
+#define ISR_RS_UPDATE	0x20000	/* interrupt ater new rx pkt status written
+				 * to host. */
+#define ISR_TX_EARLY	0x40000	/* interrupt when txmac begin transmit one
+				 * packet */
+
+#define ISR_TX_EVENT (ISR_TXF_UR | ISR_TXS_OV | ISR_HOST_TXD_UR |\
+	ISR_TS_UPDATE | ISR_TX_EARLY)
+#define ISR_RX_EVENT (ISR_RXF_OV | ISR_RXS_OV | ISR_HOST_RXD_OV |\
+	 ISR_RS_UPDATE)
+
+#define IMR_NORMAL_MASK		(\
+	/*ISR_LINK_CHG		|*/\
+	ISR_MANUAL		|\
+	ISR_DMAR_TO_RST		|\
+	ISR_DMAW_TO_RST		|\
+	ISR_PHY			|\
+	ISR_PHY_LINKDOWN	|\
+	ISR_TS_UPDATE		|\
+	ISR_RS_UPDATE)
+
+/* Receive MAC Statistics Registers */
+#define REG_STS_RX_PAUSE	0x1700	/* Num pause packets received */
+#define REG_STS_RXD_OV		0x1704	/* Num frames dropped due to RX
+					 * FIFO overflow */
+#define REG_STS_RXS_OV		0x1708	/* Num frames dropped due to RX
+					 * Status Buffer Overflow */
+#define REG_STS_RX_FILTER	0x170C	/* Num packets dropped due to
+					 * address filtering */
+
+/* MII definitions */
+
+/* PHY Common Register */
+#define MII_SMARTSPEED	0x14
+#define MII_DBG_ADDR	0x1D
+#define MII_DBG_DATA	0x1E
+
+/* PCI Command Register Bit Definitions */
+#define PCI_REG_COMMAND		0x04
+#define CMD_IO_SPACE		0x0001
+#define CMD_MEMORY_SPACE	0x0002
+#define CMD_BUS_MASTER		0x0004
+
+#define MEDIA_TYPE_100M_FULL	1
+#define MEDIA_TYPE_100M_HALF	2
+#define MEDIA_TYPE_10M_FULL	3
+#define MEDIA_TYPE_10M_HALF	4
+
+#define AUTONEG_ADVERTISE_SPEED_DEFAULT	0x000F	/* Everything */
+
+/* The size (in bytes) of a ethernet packet */
+#define MAXIMUM_ETHERNET_FRAME_SIZE	1518	/* with FCS */
+#define MINIMUM_ETHERNET_FRAME_SIZE	64	/* with FCS */
+#define MAX_JUMBO_FRAME_SIZE		0x2000
+
+struct tx_pkt_header {
+	unsigned pkt_size:11;
+	unsigned:4;			/* reserved */
+	unsigned ins_vlan:1;		/* txmac should insert vlan */
+	unsigned short vlan;		/* vlan tag */
+};
+/* FIXME: replace above bitfields with MASK/SHIFT defines below */
+#define TX_PKT_HEADER_SIZE_MASK		0x7FF
+#define TX_PKT_HEADER_SIZE_SHIFT	0
+#define TX_PKT_HEADER_INS_VLAN_MASK	0x1
+#define TX_PKT_HEADER_INS_VLAN_SHIFT	15
+#define TX_PKT_HEADER_VLAN_TAG_MASK	0xFFFF
+#define TX_PKT_HEADER_VLAN_TAG_SHIFT	16
+
+struct tx_pkt_status {
+	unsigned pkt_size:11;
+	unsigned:5;		/* reserved */
+	unsigned ok:1;		/* current packet transmitted without error */
+	unsigned bcast:1;	/* broadcast packet */
+	unsigned mcast:1;	/* multicast packet */
+	unsigned pause:1;	/* transmiited a pause frame */
+	unsigned ctrl:1;
+	unsigned defer:1;    	/* current packet is xmitted with defer */
+	unsigned exc_defer:1;
+	unsigned single_col:1;
+	unsigned multi_col:1;
+	unsigned late_col:1;
+	unsigned abort_col:1;
+	unsigned underrun:1;	/* current packet is aborted
+				 * due to txram underrun */
+	unsigned:3;		/* reserved */
+	unsigned update:1;	/* always 1'b1 in tx_status_buf */
+};
+/* FIXME: replace above bitfields with MASK/SHIFT defines below */
+#define TX_PKT_STATUS_SIZE_MASK		0x7FF
+#define TX_PKT_STATUS_SIZE_SHIFT	0
+#define TX_PKT_STATUS_OK_MASK		0x1
+#define TX_PKT_STATUS_OK_SHIFT		16
+#define TX_PKT_STATUS_BCAST_MASK	0x1
+#define TX_PKT_STATUS_BCAST_SHIFT	17
+#define TX_PKT_STATUS_MCAST_MASK	0x1
+#define TX_PKT_STATUS_MCAST_SHIFT	18
+#define TX_PKT_STATUS_PAUSE_MASK	0x1
+#define TX_PKT_STATUS_PAUSE_SHIFT	19
+#define TX_PKT_STATUS_CTRL_MASK		0x1
+#define TX_PKT_STATUS_CTRL_SHIFT	20
+#define TX_PKT_STATUS_DEFER_MASK	0x1
+#define TX_PKT_STATUS_DEFER_SHIFT	21
+#define TX_PKT_STATUS_EXC_DEFER_MASK	0x1
+#define TX_PKT_STATUS_EXC_DEFER_SHIFT	22
+#define TX_PKT_STATUS_SINGLE_COL_MASK	0x1
+#define TX_PKT_STATUS_SINGLE_COL_SHIFT	23
+#define TX_PKT_STATUS_MULTI_COL_MASK	0x1
+#define TX_PKT_STATUS_MULTI_COL_SHIFT	24
+#define TX_PKT_STATUS_LATE_COL_MASK	0x1
+#define TX_PKT_STATUS_LATE_COL_SHIFT	25
+#define TX_PKT_STATUS_ABORT_COL_MASK	0x1
+#define TX_PKT_STATUS_ABORT_COL_SHIFT	26
+#define TX_PKT_STATUS_UNDERRUN_MASK	0x1
+#define TX_PKT_STATUS_UNDERRUN_SHIFT	27
+#define TX_PKT_STATUS_UPDATE_MASK	0x1
+#define TX_PKT_STATUS_UPDATE_SHIFT	31
+
+struct rx_pkt_status {
+	unsigned pkt_size:11;	/* packet size, max 2047 bytes */
+	unsigned:5;		/* reserved */
+	unsigned ok:1;		/* current packet received ok without error */
+	unsigned bcast:1;	/* current packet is broadcast */
+	unsigned mcast:1;	/* current packet is multicast */
+	unsigned pause:1;
+	unsigned ctrl:1;
+	unsigned crc:1;		/* received a packet with crc error */
+	unsigned code:1;	/* received a packet with code error */
+	unsigned runt:1;	/* received a packet less than 64 bytes
+				 * with good crc */
+	unsigned frag:1;	/* received a packet less than 64 bytes
+				 * with bad crc */
+	unsigned trunc:1;	/* current frame truncated due to rxram full */
+	unsigned align:1;	/* this packet is alignment error */
+	unsigned vlan:1;	/* this packet has vlan */
+	unsigned:3;		/* reserved */
+	unsigned update:1;
+	unsigned short vtag;	/* vlan tag */
+	unsigned:16;
+};
+/* FIXME: replace above bitfields with MASK/SHIFT defines below */
+#define RX_PKT_STATUS_SIZE_MASK		0x7FF
+#define RX_PKT_STATUS_SIZE_SHIFT	0
+#define RX_PKT_STATUS_OK_MASK		0x1
+#define RX_PKT_STATUS_OK_SHIFT		16
+#define RX_PKT_STATUS_BCAST_MASK	0x1
+#define RX_PKT_STATUS_BCAST_SHIFT	17
+#define RX_PKT_STATUS_MCAST_MASK	0x1
+#define RX_PKT_STATUS_MCAST_SHIFT	18
+#define RX_PKT_STATUS_PAUSE_MASK	0x1
+#define RX_PKT_STATUS_PAUSE_SHIFT	19
+#define RX_PKT_STATUS_CTRL_MASK		0x1
+#define RX_PKT_STATUS_CTRL_SHIFT	20
+#define RX_PKT_STATUS_CRC_MASK		0x1
+#define RX_PKT_STATUS_CRC_SHIFT		21
+#define RX_PKT_STATUS_CODE_MASK		0x1
+#define RX_PKT_STATUS_CODE_SHIFT	22
+#define RX_PKT_STATUS_RUNT_MASK		0x1
+#define RX_PKT_STATUS_RUNT_SHIFT	23
+#define RX_PKT_STATUS_FRAG_MASK		0x1
+#define RX_PKT_STATUS_FRAG_SHIFT	24
+#define RX_PKT_STATUS_TRUNK_MASK	0x1
+#define RX_PKT_STATUS_TRUNK_SHIFT	25
+#define RX_PKT_STATUS_ALIGN_MASK	0x1
+#define RX_PKT_STATUS_ALIGN_SHIFT	26
+#define RX_PKT_STATUS_VLAN_MASK		0x1
+#define RX_PKT_STATUS_VLAN_SHIFT	27
+#define RX_PKT_STATUS_UPDATE_MASK	0x1
+#define RX_PKT_STATUS_UPDATE_SHIFT	31
+#define RX_PKT_STATUS_VLAN_TAG_MASK	0xFFFF
+#define RX_PKT_STATUS_VLAN_TAG_SHIFT	32
+
+struct rx_desc {
+	struct rx_pkt_status	status;
+	unsigned char     	packet[1536-sizeof(struct rx_pkt_status)];
+};
+
+enum atl2_speed_duplex {
+	atl2_10_half = 0,
+	atl2_10_full = 1,
+	atl2_100_half = 2,
+	atl2_100_full = 3
+};
+
+struct atl2_spi_flash_dev {
+	const char *manu_name;	/* manufacturer id */
+	/* op-code */
+	u8 cmdWRSR;
+	u8 cmdREAD;
+	u8 cmdPROGRAM;
+	u8 cmdWREN;
+	u8 cmdWRDI;
+	u8 cmdRDSR;
+	u8 cmdRDID;
+	u8 cmdSECTOR_ERASE;
+	u8 cmdCHIP_ERASE;
+};
+
+/* Structure containing variables used by the shared code (atl2_hw.c) */
+struct atl2_hw {
+	u8 __iomem *hw_addr;
+	void *back;
+
+	u8 preamble_len;
+	u8 max_retry;          /* Retransmission maximum, afterwards the
+				* packet will be discarded. */
+	u8 jam_ipg;            /* IPG to start JAM for collision based flow
+				* control in half-duplex mode. In unit of
+				* 8-bit time. */
+	u8 ipgt;               /* Desired back to back inter-packet gap. The
+				* default is 96-bit time. */
+	u8 min_ifg;            /* Minimum number of IFG to enforce in between
+				* RX frames. Frame gap below such IFP is
+				* dropped. */
+	u8 ipgr1;              /* 64bit Carrier-Sense window */
+	u8 ipgr2;              /* 96-bit IPG window */
+	u8 retry_buf;          /* When half-duplex mode, should hold some
+				* bytes for mac retry . (8*4bytes unit) */
+
+	u16 fc_rxd_hi;
+	u16 fc_rxd_lo;
+	u16 lcol;              /* Collision Window */
+	u16 max_frame_size;
+
+	u16 MediaType;
+	u16 autoneg_advertised;
+	u16 pci_cmd_word;
+
+	u16 mii_autoneg_adv_reg;
+
+	u32 mem_rang;
+	u32 txcw;
+	u32 mc_filter_type;
+	u32 num_mc_addrs;
+	u32 collision_delta;
+	u32 tx_packet_delta;
+	u16 phy_spd_default;
+
+	u16 device_id;
+	u16 vendor_id;
+	u16 subsystem_id;
+	u16 subsystem_vendor_id;
+	u8 revision_id;
+
+	/* spi flash */
+	u8 flash_vendor;
+
+	u8 dma_fairness;
+	u8 mac_addr[ETH_ALEN];
+	u8 perm_mac_addr[ETH_ALEN];
+
+	/* FIXME */
+	/* bool phy_preamble_sup; */
+	bool phy_configured;
+};
+
+#endif /* _ATL2_HW_H_ */
+
+struct atl2_ring_header {
+    /* pointer to the descriptor ring memory */
+    void *desc;
+    /* physical address of the descriptor ring */
+    dma_addr_t dma;
+    /* length of descriptor ring in bytes */
+    unsigned int size;
+};
+
+/* board specific private data structure */
+struct atl2_adapter {
+	/* OS defined structs */
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	u32 wol;
+	u16 link_speed;
+	u16 link_duplex;
+
+	spinlock_t stats_lock;
+
+	struct work_struct reset_task;
+	struct work_struct link_chg_task;
+	struct timer_list watchdog_timer;
+	struct timer_list phy_config_timer;
+
+	unsigned long cfg_phy;
+	bool mac_disabled;
+
+	/* All Descriptor memory */
+	dma_addr_t	ring_dma;
+	void		*ring_vir_addr;
+	int		ring_size;
+
+	struct tx_pkt_header	*txd_ring;
+	dma_addr_t	txd_dma;
+
+	struct tx_pkt_status	*txs_ring;
+	dma_addr_t	txs_dma;
+
+	struct rx_desc	*rxd_ring;
+	dma_addr_t	rxd_dma;
+
+	u32 txd_ring_size;         /* bytes per unit */
+	u32 txs_ring_size;         /* dwords per unit */
+	u32 rxd_ring_size;         /* 1536 bytes per unit */
+
+	/* read /write ptr: */
+	/* host */
+	u32 txd_write_ptr;
+	u32 txs_next_clear;
+	u32 rxd_read_ptr;
+
+	/* nic */
+	atomic_t txd_read_ptr;
+	atomic_t txs_write_ptr;
+	u32 rxd_write_ptr;
+
+	/* Interrupt Moderator timer ( 2us resolution) */
+	u16 imt;
+	/* Interrupt Clear timer (2us resolution) */
+	u16 ict;
+
+	unsigned long flags;
+	/* structs defined in atl2_hw.h */
+	u32 bd_number;     /* board number */
+	bool pci_using_64;
+	bool have_msi;
+	struct atl2_hw hw;
+
+	u32 usr_cmd;
+	/* FIXME */
+	/* u32 regs_buff[ATL2_REGS_LEN]; */
+	u32 pci_state[16];
+
+	u32 *config_space;
+};
+
+enum atl2_state_t {
+	__ATL2_TESTING,
+	__ATL2_RESETTING,
+	__ATL2_DOWN
+};
+
+#endif /* _ATL2_H_ */
diff --git a/drivers/net/ethernet/atheros/atlx/atlx.c b/drivers/net/ethernet/atheros/atlx/atlx.c
new file mode 100644
index 0000000000..e8cfbf4ff1
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atlx.c
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* atlx.c -- common functions for Attansic network drivers
+ *
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ */
+
+/* Including this file like a header is a temporary hack, I promise. -- CHS */
+#ifndef ATLX_C
+#define ATLX_C
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/if.h>
+#include <linux/netdevice.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+
+#include "atlx.h"
+
+static s32 atlx_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data);
+static u32 atlx_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr);
+static void atlx_set_mac_addr(struct atl1_hw *hw);
+
+static struct atlx_spi_flash_dev flash_table[] = {
+/*	MFR_NAME  WRSR  READ  PRGM  WREN  WRDI  RDSR  RDID  SEC_ERS CHIP_ERS */
+	{"Atmel", 0x00, 0x03, 0x02, 0x06, 0x04, 0x05, 0x15, 0x52,   0x62},
+	{"SST",   0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0x90, 0x20,   0x60},
+	{"ST",    0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0xAB, 0xD8,   0xC7},
+};
+
+static int atlx_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		return atlx_mii_ioctl(netdev, ifr, cmd);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+/**
+ * atlx_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int atlx_set_mac(struct net_device *netdev, void *p)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	eth_hw_addr_set(netdev, addr->sa_data);
+	memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
+
+	atlx_set_mac_addr(&adapter->hw);
+	return 0;
+}
+
+static void atlx_check_for_link(struct atlx_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	u16 phy_data = 0;
+
+	spin_lock(&adapter->lock);
+	adapter->phy_timer_pending = false;
+	atlx_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	atlx_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
+	spin_unlock(&adapter->lock);
+
+	/* notify upper layer link down ASAP */
+	if (!(phy_data & BMSR_LSTATUS)) {
+		/* Link Down */
+		if (netif_carrier_ok(netdev)) {
+			/* old link state: Up */
+			dev_info(&adapter->pdev->dev, "%s link is down\n",
+				netdev->name);
+			adapter->link_speed = SPEED_0;
+			netif_carrier_off(netdev);
+		}
+	}
+	schedule_work(&adapter->link_chg_task);
+}
+
+/**
+ * atlx_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated.  This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ */
+static void atlx_set_multi(struct net_device *netdev)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	struct atlx_hw *hw = &adapter->hw;
+	struct netdev_hw_addr *ha;
+	u32 rctl;
+	u32 hash_value;
+
+	/* Check for Promiscuous and All Multicast modes */
+	rctl = ioread32(hw->hw_addr + REG_MAC_CTRL);
+	if (netdev->flags & IFF_PROMISC)
+		rctl |= MAC_CTRL_PROMIS_EN;
+	else if (netdev->flags & IFF_ALLMULTI) {
+		rctl |= MAC_CTRL_MC_ALL_EN;
+		rctl &= ~MAC_CTRL_PROMIS_EN;
+	} else
+		rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
+
+	iowrite32(rctl, hw->hw_addr + REG_MAC_CTRL);
+
+	/* clear the old settings from the multicast hash table */
+	iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
+	iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+
+	/* compute mc addresses' hash value ,and put it into hash table */
+	netdev_for_each_mc_addr(ha, netdev) {
+		hash_value = atlx_hash_mc_addr(hw, ha->addr);
+		atlx_hash_set(hw, hash_value);
+	}
+}
+
+static inline void atlx_imr_set(struct atlx_adapter *adapter,
+				unsigned int imr)
+{
+	iowrite32(imr, adapter->hw.hw_addr + REG_IMR);
+	ioread32(adapter->hw.hw_addr + REG_IMR);
+}
+
+/**
+ * atlx_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ */
+static void atlx_irq_enable(struct atlx_adapter *adapter)
+{
+	atlx_imr_set(adapter, IMR_NORMAL_MASK);
+	adapter->int_enabled = true;
+}
+
+/**
+ * atlx_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ */
+static void atlx_irq_disable(struct atlx_adapter *adapter)
+{
+	adapter->int_enabled = false;
+	atlx_imr_set(adapter, 0);
+	synchronize_irq(adapter->pdev->irq);
+}
+
+static void atlx_clear_phy_int(struct atlx_adapter *adapter)
+{
+	u16 phy_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	atlx_read_phy_reg(&adapter->hw, 19, &phy_data);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+/**
+ * atlx_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ */
+static void atlx_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	/* Do the reset outside of interrupt context */
+	schedule_work(&adapter->reset_dev_task);
+}
+
+/*
+ * atlx_link_chg_task - deal with link change event Out of interrupt context
+ */
+static void atlx_link_chg_task(struct work_struct *work)
+{
+	struct atlx_adapter *adapter;
+	unsigned long flags;
+
+	adapter = container_of(work, struct atlx_adapter, link_chg_task);
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	atlx_check_link(adapter);
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+static void __atlx_vlan_mode(netdev_features_t features, u32 *ctrl)
+{
+	if (features & NETIF_F_HW_VLAN_CTAG_RX) {
+		/* enable VLAN tag insert/strip */
+		*ctrl |= MAC_CTRL_RMV_VLAN;
+	} else {
+		/* disable VLAN tag insert/strip */
+		*ctrl &= ~MAC_CTRL_RMV_VLAN;
+	}
+}
+
+static void atlx_vlan_mode(struct net_device *netdev,
+	netdev_features_t features)
+{
+	struct atlx_adapter *adapter = netdev_priv(netdev);
+	unsigned long flags;
+	u32 ctrl;
+
+	spin_lock_irqsave(&adapter->lock, flags);
+	/* atlx_irq_disable(adapter); FIXME: confirm/remove */
+	ctrl = ioread32(adapter->hw.hw_addr + REG_MAC_CTRL);
+	__atlx_vlan_mode(features, &ctrl);
+	iowrite32(ctrl, adapter->hw.hw_addr + REG_MAC_CTRL);
+	/* atlx_irq_enable(adapter); FIXME */
+	spin_unlock_irqrestore(&adapter->lock, flags);
+}
+
+static void atlx_restore_vlan(struct atlx_adapter *adapter)
+{
+	atlx_vlan_mode(adapter->netdev, adapter->netdev->features);
+}
+
+static netdev_features_t atlx_fix_features(struct net_device *netdev,
+	netdev_features_t features)
+{
+	/*
+	 * Since there is no support for separate rx/tx vlan accel
+	 * enable/disable make sure tx flag is always in same state as rx.
+	 */
+	if (features & NETIF_F_HW_VLAN_CTAG_RX)
+		features |= NETIF_F_HW_VLAN_CTAG_TX;
+	else
+		features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+
+	return features;
+}
+
+static int atlx_set_features(struct net_device *netdev,
+	netdev_features_t features)
+{
+	netdev_features_t changed = netdev->features ^ features;
+
+	if (changed & NETIF_F_HW_VLAN_CTAG_RX)
+		atlx_vlan_mode(netdev, features);
+
+	return 0;
+}
+
+#endif /* ATLX_C */
diff --git a/drivers/net/ethernet/atheros/atlx/atlx.h b/drivers/net/ethernet/atheros/atlx/atlx.h
new file mode 100644
index 0000000000..7f5d4e24eb
--- /dev/null
+++ b/drivers/net/ethernet/atheros/atlx/atlx.h
@@ -0,0 +1,489 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* atlx_hw.h -- common hardware definitions for Attansic network drivers
+ *
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ */
+
+#ifndef ATLX_H
+#define ATLX_H
+
+#include <linux/module.h>
+#include <linux/types.h>
+
+#define ATLX_ERR_PHY			2
+#define ATLX_ERR_PHY_SPEED		7
+#define ATLX_ERR_PHY_RES		8
+
+#define SPEED_0				0xffff
+#define SPEED_10			10
+#define SPEED_100			100
+#define SPEED_1000			1000
+#define HALF_DUPLEX			1
+#define FULL_DUPLEX			2
+
+#define MEDIA_TYPE_AUTO_SENSOR		0
+
+/* register definitions */
+#define REG_PM_CTRLSTAT			0x44
+
+#define REG_PCIE_CAP_LIST		0x58
+
+#define REG_VPD_CAP			0x6C
+#define VPD_CAP_ID_MASK			0xFF
+#define VPD_CAP_ID_SHIFT		0
+#define VPD_CAP_NEXT_PTR_MASK		0xFF
+#define VPD_CAP_NEXT_PTR_SHIFT		8
+#define VPD_CAP_VPD_ADDR_MASK		0x7FFF
+#define VPD_CAP_VPD_ADDR_SHIFT		16
+#define VPD_CAP_VPD_FLAG		0x80000000
+
+#define REG_VPD_DATA			0x70
+
+#define REG_SPI_FLASH_CTRL		0x200
+#define SPI_FLASH_CTRL_STS_NON_RDY	0x1
+#define SPI_FLASH_CTRL_STS_WEN		0x2
+#define SPI_FLASH_CTRL_STS_WPEN		0x80
+#define SPI_FLASH_CTRL_DEV_STS_MASK	0xFF
+#define SPI_FLASH_CTRL_DEV_STS_SHIFT	0
+#define SPI_FLASH_CTRL_INS_MASK		0x7
+#define SPI_FLASH_CTRL_INS_SHIFT	8
+#define SPI_FLASH_CTRL_START		0x800
+#define SPI_FLASH_CTRL_EN_VPD		0x2000
+#define SPI_FLASH_CTRL_LDSTART		0x8000
+#define SPI_FLASH_CTRL_CS_HI_MASK	0x3
+#define SPI_FLASH_CTRL_CS_HI_SHIFT	16
+#define SPI_FLASH_CTRL_CS_HOLD_MASK	0x3
+#define SPI_FLASH_CTRL_CS_HOLD_SHIFT	18
+#define SPI_FLASH_CTRL_CLK_LO_MASK	0x3
+#define SPI_FLASH_CTRL_CLK_LO_SHIFT	20
+#define SPI_FLASH_CTRL_CLK_HI_MASK	0x3
+#define SPI_FLASH_CTRL_CLK_HI_SHIFT	22
+#define SPI_FLASH_CTRL_CS_SETUP_MASK	0x3
+#define SPI_FLASH_CTRL_CS_SETUP_SHIFT	24
+#define SPI_FLASH_CTRL_EROM_PGSZ_MASK	0x3
+#define SPI_FLASH_CTRL_EROM_PGSZ_SHIFT	26
+#define SPI_FLASH_CTRL_WAIT_READY	0x10000000
+
+#define REG_SPI_ADDR			0x204
+
+#define REG_SPI_DATA			0x208
+
+#define REG_SPI_FLASH_CONFIG		0x20C
+#define SPI_FLASH_CONFIG_LD_ADDR_MASK	0xFFFFFF
+#define SPI_FLASH_CONFIG_LD_ADDR_SHIFT	0
+#define SPI_FLASH_CONFIG_VPD_ADDR_MASK	0x3
+#define SPI_FLASH_CONFIG_VPD_ADDR_SHIFT	24
+#define SPI_FLASH_CONFIG_LD_EXIST	0x4000000
+
+#define REG_SPI_FLASH_OP_PROGRAM	0x210
+#define REG_SPI_FLASH_OP_SC_ERASE	0x211
+#define REG_SPI_FLASH_OP_CHIP_ERASE	0x212
+#define REG_SPI_FLASH_OP_RDID		0x213
+#define REG_SPI_FLASH_OP_WREN		0x214
+#define REG_SPI_FLASH_OP_RDSR		0x215
+#define REG_SPI_FLASH_OP_WRSR		0x216
+#define REG_SPI_FLASH_OP_READ		0x217
+
+#define REG_TWSI_CTRL			0x218
+#define TWSI_CTRL_LD_OFFSET_MASK	0xFF
+#define TWSI_CTRL_LD_OFFSET_SHIFT	0
+#define TWSI_CTRL_LD_SLV_ADDR_MASK	0x7
+#define TWSI_CTRL_LD_SLV_ADDR_SHIFT	8
+#define TWSI_CTRL_SW_LDSTART		0x800
+#define TWSI_CTRL_HW_LDSTART		0x1000
+#define TWSI_CTRL_SMB_SLV_ADDR_MASK	0x7F
+#define TWSI_CTRL_SMB_SLV_ADDR_SHIFT	15
+#define TWSI_CTRL_LD_EXIST		0x400000
+#define TWSI_CTRL_READ_FREQ_SEL_MASK	0x3
+#define TWSI_CTRL_READ_FREQ_SEL_SHIFT	23
+#define TWSI_CTRL_FREQ_SEL_100K		0
+#define TWSI_CTRL_FREQ_SEL_200K		1
+#define TWSI_CTRL_FREQ_SEL_300K		2
+#define TWSI_CTRL_FREQ_SEL_400K		3
+#define TWSI_CTRL_SMB_SLV_ADDR		/* FIXME: define or remove */
+#define TWSI_CTRL_WRITE_FREQ_SEL_MASK	0x3
+#define TWSI_CTRL_WRITE_FREQ_SEL_SHIFT	24
+
+#define REG_PCIE_DEV_MISC_CTRL			0x21C
+#define PCIE_DEV_MISC_CTRL_EXT_PIPE		0x2
+#define PCIE_DEV_MISC_CTRL_RETRY_BUFDIS		0x1
+#define PCIE_DEV_MISC_CTRL_SPIROM_EXIST		0x4
+#define PCIE_DEV_MISC_CTRL_SERDES_ENDIAN	0x8
+#define PCIE_DEV_MISC_CTRL_SERDES_SEL_DIN	0x10
+
+#define REG_PCIE_PHYMISC		0x1000
+#define PCIE_PHYMISC_FORCE_RCV_DET	0x4
+
+#define REG_PCIE_DLL_TX_CTRL1		0x1104
+#define PCIE_DLL_TX_CTRL1_SEL_NOR_CLK	0x400
+#define PCIE_DLL_TX_CTRL1_DEF		0x568
+
+#define REG_LTSSM_TEST_MODE		0x12FC
+#define LTSSM_TEST_MODE_DEF		0x6500
+
+/* Master Control Register */
+#define REG_MASTER_CTRL			0x1400
+#define MASTER_CTRL_SOFT_RST		0x1
+#define MASTER_CTRL_MTIMER_EN		0x2
+#define MASTER_CTRL_ITIMER_EN		0x4
+#define MASTER_CTRL_MANUAL_INT		0x8
+#define MASTER_CTRL_REV_NUM_SHIFT	16
+#define MASTER_CTRL_REV_NUM_MASK	0xFF
+#define MASTER_CTRL_DEV_ID_SHIFT	24
+#define MASTER_CTRL_DEV_ID_MASK		0xFF
+
+/* Timer Initial Value Register */
+#define REG_MANUAL_TIMER_INIT		0x1404
+
+/* IRQ Moderator Timer Initial Value Register */
+#define REG_IRQ_MODU_TIMER_INIT		0x1408
+
+#define REG_PHY_ENABLE			0x140C
+
+/* IRQ Anti-Lost Timer Initial Value Register */
+#define REG_CMBDISDMA_TIMER		0x140E
+
+/* Block IDLE Status Register */
+#define REG_IDLE_STATUS			0x1410
+
+/* MDIO Control Register */
+#define REG_MDIO_CTRL			0x1414
+#define MDIO_DATA_MASK			0xFFFF
+#define MDIO_DATA_SHIFT			0
+#define MDIO_REG_ADDR_MASK		0x1F
+#define MDIO_REG_ADDR_SHIFT		16
+#define MDIO_RW				0x200000
+#define MDIO_SUP_PREAMBLE		0x400000
+#define MDIO_START			0x800000
+#define MDIO_CLK_SEL_SHIFT		24
+#define MDIO_CLK_25_4			0
+#define MDIO_CLK_25_6			2
+#define MDIO_CLK_25_8			3
+#define MDIO_CLK_25_10			4
+#define MDIO_CLK_25_14			5
+#define MDIO_CLK_25_20			6
+#define MDIO_CLK_25_28			7
+#define MDIO_BUSY			0x8000000
+
+/* MII PHY Status Register */
+#define REG_PHY_STATUS			0x1418
+
+/* BIST Control and Status Register0 (for the Packet Memory) */
+#define REG_BIST0_CTRL			0x141C
+#define BIST0_NOW			0x1
+#define BIST0_SRAM_FAIL			0x2
+#define BIST0_FUSE_FLAG			0x4
+#define REG_BIST1_CTRL			0x1420
+#define BIST1_NOW			0x1
+#define BIST1_SRAM_FAIL			0x2
+#define BIST1_FUSE_FLAG			0x4
+
+/* SerDes Lock Detect Control and Status Register */
+#define REG_SERDES_LOCK			0x1424
+#define SERDES_LOCK_DETECT		1
+#define SERDES_LOCK_DETECT_EN		2
+
+/* MAC Control Register */
+#define REG_MAC_CTRL			0x1480
+#define MAC_CTRL_TX_EN			1
+#define MAC_CTRL_RX_EN			2
+#define MAC_CTRL_TX_FLOW		4
+#define MAC_CTRL_RX_FLOW		8
+#define MAC_CTRL_LOOPBACK		0x10
+#define MAC_CTRL_DUPLX			0x20
+#define MAC_CTRL_ADD_CRC		0x40
+#define MAC_CTRL_PAD			0x80
+#define MAC_CTRL_LENCHK			0x100
+#define MAC_CTRL_HUGE_EN		0x200
+#define MAC_CTRL_PRMLEN_SHIFT		10
+#define MAC_CTRL_PRMLEN_MASK		0xF
+#define MAC_CTRL_RMV_VLAN		0x4000
+#define MAC_CTRL_PROMIS_EN		0x8000
+#define MAC_CTRL_MC_ALL_EN		0x2000000
+#define MAC_CTRL_BC_EN			0x4000000
+
+/* MAC IPG/IFG Control Register */
+#define REG_MAC_IPG_IFG			0x1484
+#define MAC_IPG_IFG_IPGT_SHIFT		0
+#define MAC_IPG_IFG_IPGT_MASK		0x7F
+#define MAC_IPG_IFG_MIFG_SHIFT		8
+#define MAC_IPG_IFG_MIFG_MASK		0xFF
+#define MAC_IPG_IFG_IPGR1_SHIFT		16
+#define MAC_IPG_IFG_IPGR1_MASK		0x7F
+#define MAC_IPG_IFG_IPGR2_SHIFT		24
+#define MAC_IPG_IFG_IPGR2_MASK		0x7F
+
+/* MAC STATION ADDRESS */
+#define REG_MAC_STA_ADDR		0x1488
+
+/* Hash table for multicast address */
+#define REG_RX_HASH_TABLE		0x1490
+
+/* MAC Half-Duplex Control Register */
+#define REG_MAC_HALF_DUPLX_CTRL			0x1498
+#define MAC_HALF_DUPLX_CTRL_LCOL_SHIFT		0
+#define MAC_HALF_DUPLX_CTRL_LCOL_MASK		0x3FF
+#define MAC_HALF_DUPLX_CTRL_RETRY_SHIFT		12
+#define MAC_HALF_DUPLX_CTRL_RETRY_MASK		0xF
+#define MAC_HALF_DUPLX_CTRL_EXC_DEF_EN		0x10000
+#define MAC_HALF_DUPLX_CTRL_NO_BACK_C		0x20000
+#define MAC_HALF_DUPLX_CTRL_NO_BACK_P		0x40000
+#define MAC_HALF_DUPLX_CTRL_ABEBE		0x80000
+#define MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT		20
+#define MAC_HALF_DUPLX_CTRL_ABEBT_MASK		0xF
+#define MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT	24
+#define MAC_HALF_DUPLX_CTRL_JAMIPG_MASK		0xF
+
+/* Maximum Frame Length Control Register */
+#define REG_MTU				0x149C
+
+/* Wake-On-Lan control register */
+#define REG_WOL_CTRL			0x14A0
+#define WOL_PATTERN_EN			0x1
+#define WOL_PATTERN_PME_EN		0x2
+#define WOL_MAGIC_EN			0x4
+#define WOL_MAGIC_PME_EN		0x8
+#define WOL_LINK_CHG_EN			0x10
+#define WOL_LINK_CHG_PME_EN		0x20
+#define WOL_PATTERN_ST			0x100
+#define WOL_MAGIC_ST			0x200
+#define WOL_LINKCHG_ST			0x400
+#define WOL_PT0_EN			0x10000
+#define WOL_PT1_EN			0x20000
+#define WOL_PT2_EN			0x40000
+#define WOL_PT3_EN			0x80000
+#define WOL_PT4_EN			0x100000
+#define WOL_PT0_MATCH			0x1000000
+#define WOL_PT1_MATCH			0x2000000
+#define WOL_PT2_MATCH			0x4000000
+#define WOL_PT3_MATCH			0x8000000
+#define WOL_PT4_MATCH			0x10000000
+
+/* Internal SRAM Partition Register, high 32 bits */
+#define REG_SRAM_RFD_ADDR		0x1500
+
+/* Descriptor Control register, high 32 bits */
+#define REG_DESC_BASE_ADDR_HI		0x1540
+
+/* Interrupt Status Register */
+#define REG_ISR				0x1600
+#define ISR_UR_DETECTED			0x1000000
+#define ISR_FERR_DETECTED		0x2000000
+#define ISR_NFERR_DETECTED		0x4000000
+#define ISR_CERR_DETECTED		0x8000000
+#define ISR_PHY_LINKDOWN		0x10000000
+#define ISR_DIS_INT			0x80000000
+
+/* Interrupt Mask Register */
+#define REG_IMR				0x1604
+
+#define REG_RFD_RRD_IDX			0x1800
+#define REG_TPD_IDX			0x1804
+
+/* MII definitions */
+
+/* PHY Common Register */
+#define MII_ATLX_CR			0x09
+#define MII_ATLX_SR			0x0A
+#define MII_ATLX_ESR			0x0F
+#define MII_ATLX_PSCR			0x10
+#define MII_ATLX_PSSR			0x11
+
+/* PHY Control Register */
+#define MII_CR_SPEED_SELECT_MSB		0x0040	/* bits 6,13: 10=1000, 01=100,
+						 * 00=10
+						 */
+#define MII_CR_COLL_TEST_ENABLE		0x0080	/* Collision test enable */
+#define MII_CR_FULL_DUPLEX		0x0100	/* FDX =1, half duplex =0 */
+#define MII_CR_RESTART_AUTO_NEG		0x0200	/* Restart auto negotiation */
+#define MII_CR_ISOLATE			0x0400	/* Isolate PHY from MII */
+#define MII_CR_POWER_DOWN		0x0800	/* Power down */
+#define MII_CR_AUTO_NEG_EN		0x1000	/* Auto Neg Enable */
+#define MII_CR_SPEED_SELECT_LSB		0x2000	/* bits 6,13: 10=1000, 01=100,
+						 * 00=10
+						 */
+#define MII_CR_LOOPBACK			0x4000	/* 0 = normal, 1 = loopback */
+#define MII_CR_RESET			0x8000	/* 0 = normal, 1 = PHY reset */
+#define MII_CR_SPEED_MASK		0x2040
+#define MII_CR_SPEED_1000		0x0040
+#define MII_CR_SPEED_100		0x2000
+#define MII_CR_SPEED_10			0x0000
+
+/* PHY Status Register */
+#define MII_SR_EXTENDED_CAPS		0x0001	/* Ext register capabilities */
+#define MII_SR_JABBER_DETECT		0x0002	/* Jabber Detected */
+#define MII_SR_LINK_STATUS		0x0004	/* Link Status 1 = link */
+#define MII_SR_AUTONEG_CAPS		0x0008	/* Auto Neg Capable */
+#define MII_SR_REMOTE_FAULT		0x0010	/* Remote Fault Detect */
+#define MII_SR_AUTONEG_COMPLETE		0x0020	/* Auto Neg Complete */
+#define MII_SR_PREAMBLE_SUPPRESS	0x0040	/* Preamble may be suppressed */
+#define MII_SR_EXTENDED_STATUS		0x0100	/* Ext stat info in Reg 0x0F */
+#define MII_SR_100T2_HD_CAPS		0x0200	/* 100T2 Half Duplex Capable */
+#define MII_SR_100T2_FD_CAPS		0x0400	/* 100T2 Full Duplex Capable */
+#define MII_SR_10T_HD_CAPS		0x0800	/* 10T   Half Duplex Capable */
+#define MII_SR_10T_FD_CAPS		0x1000	/* 10T   Full Duplex Capable */
+#define MII_SR_100X_HD_CAPS		0x2000	/* 100X  Half Duplex Capable */
+#define MII_SR_100X_FD_CAPS		0x4000	/* 100X  Full Duplex Capable */
+#define MII_SR_100T4_CAPS		0x8000	/* 100T4 Capable */
+
+/* Link partner ability register */
+#define MII_LPA_SLCT			0x001f	/* Same as advertise selector */
+#define MII_LPA_10HALF			0x0020	/* Can do 10mbps half-duplex */
+#define MII_LPA_10FULL			0x0040	/* Can do 10mbps full-duplex */
+#define MII_LPA_100HALF			0x0080	/* Can do 100mbps half-duplex */
+#define MII_LPA_100FULL			0x0100	/* Can do 100mbps full-duplex */
+#define MII_LPA_100BASE4		0x0200	/* 100BASE-T4 */
+#define MII_LPA_PAUSE			0x0400	/* PAUSE */
+#define MII_LPA_ASYPAUSE		0x0800	/* Asymmetrical PAUSE */
+#define MII_LPA_RFAULT			0x2000	/* Link partner faulted */
+#define MII_LPA_LPACK			0x4000	/* Link partner acked us */
+#define MII_LPA_NPAGE			0x8000	/* Next page bit */
+
+/* Autoneg Advertisement Register */
+#define MII_AR_SELECTOR_FIELD		0x0001	/* IEEE 802.3 CSMA/CD */
+#define MII_AR_10T_HD_CAPS		0x0020	/* 10T   Half Duplex Capable */
+#define MII_AR_10T_FD_CAPS		0x0040	/* 10T   Full Duplex Capable */
+#define MII_AR_100TX_HD_CAPS		0x0080	/* 100TX Half Duplex Capable */
+#define MII_AR_100TX_FD_CAPS		0x0100	/* 100TX Full Duplex Capable */
+#define MII_AR_100T4_CAPS		0x0200	/* 100T4 Capable */
+#define MII_AR_PAUSE			0x0400	/* Pause operation desired */
+#define MII_AR_ASM_DIR			0x0800	/* Asymmetric Pause Dir bit */
+#define MII_AR_REMOTE_FAULT		0x2000	/* Remote Fault detected */
+#define MII_AR_NEXT_PAGE		0x8000	/* Next Page ability support */
+#define MII_AR_SPEED_MASK		0x01E0
+#define MII_AR_DEFAULT_CAP_MASK		0x0DE0
+
+/* 1000BASE-T Control Register */
+#define MII_ATLX_CR_1000T_HD_CAPS	0x0100	/* Adv 1000T HD cap */
+#define MII_ATLX_CR_1000T_FD_CAPS	0x0200	/* Adv 1000T FD cap */
+#define MII_ATLX_CR_1000T_REPEATER_DTE	0x0400	/* 1=Repeater/switch device,
+						 * 0=DTE device */
+#define MII_ATLX_CR_1000T_MS_VALUE	0x0800	/* 1=Config PHY as Master,
+						 * 0=Configure PHY as Slave */
+#define MII_ATLX_CR_1000T_MS_ENABLE	0x1000	/* 1=Man Master/Slave config,
+						 * 0=Auto Master/Slave config
+						 */
+#define MII_ATLX_CR_1000T_TEST_MODE_NORMAL	0x0000	/* Normal Operation */
+#define MII_ATLX_CR_1000T_TEST_MODE_1	0x2000	/* Transmit Waveform test */
+#define MII_ATLX_CR_1000T_TEST_MODE_2	0x4000	/* Master Xmit Jitter test */
+#define MII_ATLX_CR_1000T_TEST_MODE_3	0x6000	/* Slave Xmit Jitter test */
+#define MII_ATLX_CR_1000T_TEST_MODE_4	0x8000	/* Xmitter Distortion test */
+#define MII_ATLX_CR_1000T_SPEED_MASK	0x0300
+#define MII_ATLX_CR_1000T_DEFAULT_CAP_MASK	0x0300
+
+/* 1000BASE-T Status Register */
+#define MII_ATLX_SR_1000T_LP_HD_CAPS	0x0400	/* LP is 1000T HD capable */
+#define MII_ATLX_SR_1000T_LP_FD_CAPS	0x0800	/* LP is 1000T FD capable */
+#define MII_ATLX_SR_1000T_REMOTE_RX_STATUS	0x1000	/* Remote receiver OK */
+#define MII_ATLX_SR_1000T_LOCAL_RX_STATUS	0x2000	/* Local receiver OK */
+#define MII_ATLX_SR_1000T_MS_CONFIG_RES		0x4000	/* 1=Local TX is Master
+							 * 0=Slave
+							 */
+#define MII_ATLX_SR_1000T_MS_CONFIG_FAULT	0x8000	/* Master/Slave config
+							 * fault */
+#define MII_ATLX_SR_1000T_REMOTE_RX_STATUS_SHIFT	12
+#define MII_ATLX_SR_1000T_LOCAL_RX_STATUS_SHIFT		13
+
+/* Extended Status Register */
+#define MII_ATLX_ESR_1000T_HD_CAPS	0x1000	/* 1000T HD capable */
+#define MII_ATLX_ESR_1000T_FD_CAPS	0x2000	/* 1000T FD capable */
+#define MII_ATLX_ESR_1000X_HD_CAPS	0x4000	/* 1000X HD capable */
+#define MII_ATLX_ESR_1000X_FD_CAPS	0x8000	/* 1000X FD capable */
+
+/* ATLX PHY Specific Control Register */
+#define MII_ATLX_PSCR_JABBER_DISABLE	0x0001	/* 1=Jabber Func disabled */
+#define MII_ATLX_PSCR_POLARITY_REVERSAL	0x0002	/* 1=Polarity Reversal enbld */
+#define MII_ATLX_PSCR_SQE_TEST		0x0004	/* 1=SQE Test enabled */
+#define MII_ATLX_PSCR_MAC_POWERDOWN	0x0008
+#define MII_ATLX_PSCR_CLK125_DISABLE	0x0010	/* 1=CLK125 low
+						 * 0=CLK125 toggling
+						 */
+#define MII_ATLX_PSCR_MDI_MANUAL_MODE	0x0000	/* MDI Crossover Mode bits 6:5,
+						 * Manual MDI configuration
+						 */
+#define MII_ATLX_PSCR_MDIX_MANUAL_MODE	0x0020	/* Manual MDIX configuration */
+#define MII_ATLX_PSCR_AUTO_X_1000T	0x0040	/* 1000BASE-T: Auto crossover
+						 * 100BASE-TX/10BASE-T: MDI
+						 * Mode */
+#define MII_ATLX_PSCR_AUTO_X_MODE	0x0060	/* Auto crossover enabled
+						 * all speeds.
+						 */
+#define MII_ATLX_PSCR_10BT_EXT_DIST_ENABLE	0x0080	/* 1=Enable Extended
+							 * 10BASE-T distance
+							 * (Lower 10BASE-T RX
+							 * Threshold)
+							 * 0=Normal 10BASE-T RX
+							 * Threshold
+							 */
+#define MII_ATLX_PSCR_MII_5BIT_ENABLE	0x0100	/* 1=5-Bit interface in
+						 * 100BASE-TX
+						 * 0=MII interface in
+						 * 100BASE-TX
+						 */
+#define MII_ATLX_PSCR_SCRAMBLER_DISABLE	0x0200	/* 1=Scrambler dsbl */
+#define MII_ATLX_PSCR_FORCE_LINK_GOOD	0x0400	/* 1=Force link good */
+#define MII_ATLX_PSCR_ASSERT_CRS_ON_TX	0x0800	/* 1=Assert CRS on Transmit */
+#define MII_ATLX_PSCR_POLARITY_REVERSAL_SHIFT		1
+#define MII_ATLX_PSCR_AUTO_X_MODE_SHIFT			5
+#define MII_ATLX_PSCR_10BT_EXT_DIST_ENABLE_SHIFT	7
+
+/* ATLX PHY Specific Status Register */
+#define MII_ATLX_PSSR_SPD_DPLX_RESOLVED	0x0800	/* 1=Speed & Duplex resolved */
+#define MII_ATLX_PSSR_DPLX		0x2000	/* 1=Duplex 0=Half Duplex */
+#define MII_ATLX_PSSR_SPEED		0xC000	/* Speed, bits 14:15 */
+#define MII_ATLX_PSSR_10MBS		0x0000	/* 00=10Mbs */
+#define MII_ATLX_PSSR_100MBS		0x4000	/* 01=100Mbs */
+#define MII_ATLX_PSSR_1000MBS		0x8000	/* 10=1000Mbs */
+
+#define MII_DBG_ADDR			0x1D
+#define MII_DBG_DATA			0x1E
+
+/* PCI Command Register Bit Definitions */
+#define PCI_REG_COMMAND			0x04	/* PCI Command Register */
+#define CMD_IO_SPACE			0x0001
+#define CMD_MEMORY_SPACE		0x0002
+#define CMD_BUS_MASTER			0x0004
+
+/* Wake Up Filter Control */
+#define ATLX_WUFC_LNKC	0x00000001	/* Link Status Change Wakeup Enable */
+#define ATLX_WUFC_MAG	0x00000002	/* Magic Packet Wakeup Enable */
+#define ATLX_WUFC_EX	0x00000004	/* Directed Exact Wakeup Enable */
+#define ATLX_WUFC_MC	0x00000008	/* Multicast Wakeup Enable */
+#define ATLX_WUFC_BC	0x00000010	/* Broadcast Wakeup Enable */
+
+#define ADVERTISE_10_HALF		0x0001
+#define ADVERTISE_10_FULL		0x0002
+#define ADVERTISE_100_HALF		0x0004
+#define ADVERTISE_100_FULL		0x0008
+#define ADVERTISE_1000_HALF		0x0010
+#define ADVERTISE_1000_FULL		0x0020
+#define AUTONEG_ADVERTISE_10_100_ALL	0x000F	/* All 10/100 speeds */
+#define AUTONEG_ADVERTISE_10_ALL	0x0003	/* 10Mbps Full & Half speeds */
+
+#define PHY_AUTO_NEG_TIME		45	/* 4.5 Seconds */
+#define PHY_FORCE_TIME			20	/* 2.0 Seconds */
+
+/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA */
+#define EEPROM_SUM			0xBABA
+
+struct atlx_spi_flash_dev {
+	const char *manu_name;	/* manufacturer id */
+	/* op-code */
+	u8 cmd_wrsr;
+	u8 cmd_read;
+	u8 cmd_program;
+	u8 cmd_wren;
+	u8 cmd_wrdi;
+	u8 cmd_rdsr;
+	u8 cmd_rdid;
+	u8 cmd_sector_erase;
+	u8 cmd_chip_erase;
+};
+
+#endif /* ATLX_H */